enjoyment n.

late 14c., "rejoice, be glad" (intransitive), from stem of Old French enjoir "to give joy, rejoice, take delight in," from en- "make" (see en- (1)) + joir "enjoy," from Latin gaudere "rejoice" (see joy); Sense of "have the use or benefit of" first recorded early 15c. (replacing Old English brucan, for which see brook (v.)).

Transitive meaning "take pleasure in" is mid-15c. In modern use it has a tendency to lose its connection with pleasure: newspaper photo captions say someone enjoys an ice cream cone, etc., when all she is doing is eating it, and Wright's "English Dialect Dictionary" (1900) reports widespread use in north and west England of the phrase to enjoy bad health for one who has ailments. Meaning "have sexual relations with" (a woman) is from 1590s. Related: Enjoyed; enjoys; enjoying. To enjoy oneself "feel pleasure or satisfaction in one's mind" attested by 1708.

common suffix of Latin origin forming nouns, originally from French and representing Latin -mentum, which was added to verb stems to make nouns indicating the result or product of the action of the verb or the means or instrument of the action. In Vulgar Latin and Old French it came to be used as a formative in nouns of action. French inserts an -e- between the verbal root and the suffix (as in commenc-e-ment from commenc-er; with verbs in ir, -i- is inserted instead (as in sent-i-ment from sentir).

Used with English verb stems from 16c. (for example amazement, betterment, merriment, the last of which also illustrates the habit of turning -y to -i- before this suffix).

The stems to which -ment is normally appended are those of verbs; freaks like oddment & funniment should not be made a precedent of; they are themselves due to misconception of merriment, which is not from the adjective, but from an obsolete verb merry to rejoice. [Fowler]