Is "obtention" a word? [closed]

"Obtention" shows up in the Merriam-Webster online dictionary. I've never seen it used, though I can't find any good alternatives. What context would you use it in, and when would it be appropriate/inappropriate? Also, is it a real word that people would recognize?

The definition is "the action of attaining something."

The definition for acquisition is almost identical:

The buying or obtaining of assets or objects.

(Lexico, powered by Oxford, def 1.2)

In the example sentence from the definition of obtention:

Their protests serve no purpose and will only make their obtention of a diploma almost impossible.

(Lexico, powered by Oxford)

"Acquisition" could also work. But "attainment" would be better.

There are zero hits for obtention in the Corpus of Contemporary American English. That suggests it is very rare, and most people would not recognize it. Whether or not readers could ascertain its meaning would depend on the particular readers.

It would probably only be useful in certain narrow, abstract contexts.