Help, the "onus" is on me! What do you call whatever it is I'm supposed to do with it?
The onus has been discharged.
See, for example this extract from Equity and Trusts: Text, Cases and Materials by Paul S. Davies, which refers to a case called Re Harwood, and cites an extract from the judge's decision:
'The evidence in this case is so unsatisfactory that I cannot say that the onus has been discharged'
If an onus is discharged, it means the person on whom it rested has taken care of it. It doesn't mean that someone has decided they don't need to do it. In the specific example here, the judge was saying the evidence in the case was so poor that he couldn't decide whether the onus had been discharged at all.
A person may 'bear a burden' or 'have an onus placed on him', in just the same way that someone can hand you responsibility for something, metaphorically speaking. But once that burden has been dealt with (fully), the onus is lifted or discharged. "Discharging an onus" - in legal terms - simply means doing what needed to be done; there's no implication of it being 'early'. Finally, just because a term is used in legal works doesn't mean it can't or shouldn't be used in more general conversation too. 1:
Let's look first at the definition of onus, from the Oxford English Dictionary:
A burden; a responsibility or duty. Freq. with the
orig. and chiefly Law. onus of proof n. the obligation to prove an assertion or allegation one makes; the burden of proof
For the Definition #2, you can discharge the onus. From Employment Law, Practical Handbook:
How to discharge the onus of proof in an adverse action claim.......
The Court identified the following as circumstances in which the employer might not discharge the onus of proof – but ruled that none of them applied in this case:
the managers’ evidence is discredited in cross-examination;
the managers’ evidence is inherently implausible;
objective facts contradict the managers’ evidence
(You don't want me to quote more, do you? :))
Thus, I suggest that once you have disposed of whatever obligations (legal or otherwise) you assumed when you assumed the onus, you have discharged the onus.
Example (made up): I discharged the onus of providing refreshments for the after-game party by buying a lot of frozen goodies and microwaving them.
Addendum Provided at Request of the OP:
From Discharging the onus in adverse action claims - What employers can do in the post-Barclay environment: (Partial quote only; see full article for all the riveting facts. Note also that this is from Australia.)
If Mr Crompton engaged in industrial activity, did BHP discharge the onus of proof?
Justice Collier noted that if she was wrong and that Mr Crompton had engaged in industrial activity, then BHP Coal bore the onus of proving that it did not dismiss Mr Crompton for that reason. Her Honour referred to the decision of Chief Justice French and Justice Crennan in Barclay, affirming that “the question of why the decision maker [in an alleged case of adverse action] has acted is one of fact.”
Justice Collier accepted BHP Coal’s submission that it had discharged that onus, and found that BHP Coal’s decision makers were satisfied that Mr Crompton had engaged in serious misconduct by “improperly directing co-workers when to work or not work” and “engaging in physical and verbal abuse of a co-worker.”
A reason for this conclusion was that Justice Collier preferred the evidence of BHP Coal’s representatives over Mr Crompton’s testimony. In choosing to accept the BHP Coal personnel as credible witnesses, Justice Collier placed considerable emphasis on the thorough internal investigation conducted by Ms Jorja Roberts (HR Adviser) and Mr Mark Stroppiana (HR Manager) of BHP Coal
The way I read this, and I am not a lawyer, is that the coal company had the burden of proving it had fired the employee because he had misbehaved, not because he had engaged in industrial activity; the coal company proved it to the satisfaction of the court, and so discharged the onus of proof.
What you are wanting to do doesn't work with the word onus because the onus doesn't go away.
Consider "the onus of caring for the elderly usually falls on their children".
It doesn't matter if Wednesday is your day in the barrel, the onus doesn't get vanquished in the way a to-do list entry does. At least we don't talk about it in that manner. An onus is durable. It lasts as long as the actual circumstance does, regardless of how many actors enter and exit the stage. You don't talk of having the onus to do an oil change.
The idea of discharging an onus is nearly always cast in the negative or the very unlikely.
Some usage examples-
The purchase of guaranteed railways owned by foreign companies likewise added largely to the bonded indebtedness, though the onus was in existence in another form.
..
If so, apologetics is literally a science, and it is pedantry to claim the defensive and pretend to throw the onus probandi upon objectors.
Read more at http://sentence.yourdictionary.com/onus#D366q73Z7a0D2BBH.99
The onus is on my generation to remember the previous chapters in Anglo-Jewry's story.
https://www.thejc.com/comment/comment/the-onus-is-on-my-generation-to-remember-the-previous-chapters-in-anglo-jewry-s-story-1.147924
TL;DR: "I have borne the onus".
Having read the various answers, I've noticed that onus is Latin for burden. That means one may theoretically borrow burden-related terms. While discharging the onus seems relevant in some contexts (especially legal ones), I feel it intimates too strong a sense of immediacy. Instead, bearing the onus has the connotation of being both an ongoing activity and something that concludes eventually ("bearing weight" and "bearing fruit"). Also, think of the following allegorical tale:
- You're like a carriage, or a horse, or a mule
- Someone places some weight on you - a burden, an onus
- You travel, make your way, gradually
- When you reach your destination, the weight is lifted; perhaps at this moment the burden or onus is discharged
Overall, I'd say you've borne the burden, or the onus, in this story.
You don't meet the onus, onus is just responsiblity, it only dissapears when the responsibility doesn't come to you any more. Past tense the onus was on you. "The onus was on me to ensure the chocolate was fully stocked"
But it's not like a contract that's waiting to be fulfilled as you seem to be using it.
You can say "there's no onus" to indicate its gone, or "there's no onus on me now" etc.