early 15c., from Middle French contenter, from content (adj.) "satisfied," from Latin contentus "contained, satisfied," past participle of continere (see contain). Sense evolved through "contained," "restrained," to "satisfied," as the contented person's desires are bound by what he or she already has. Related: Contented; contentedly.
c.1400, from Old French content, "satisfied," from Latin contentus "contained, satisfied," past participle of continere (see contain). Related: Contently (largely superseded by contentedly).
"that which is contained," early 15c., from Latin contentum, contenta, noun use of past participle of continere (see contain). Meaning "satisfaction" is from 1570s; heart's content is from 1590s (Shakespeare).
content con·tent (kŏn'těnt')
n.
Something contained, as in a receptacle.
The proportion of a specified substance present in something else, as of protein in a food.
The subject matter or essential meaning of something, especially a dream.