Cohabit versus Cohabitate? [closed]

Solution 1:

The two terms are synonyms. They both derive from Latin “cohabitare”. Cohabitate is a later formation.

cohabit (v.):

"to dwell together," specifically "to dwell together as husband and wife," 1530s, a back-formation from cohabitation (q.v.) or else from Late Latin cohabitare. A euphemism to describe a couple living together without benefit of marriage and usually implying sexual intercourse.

cohabitate (v.):

1630s, from Late Latin cohabitatus, past participle of cohabitare "to dwell together," from co- "with, together" (see co-) + habitare "to live, inhabit, dwell”.

(Etymonline)