to be necessary, proper, becoming; to behoove, one should or ought to
Pronunciat com a (IPA)
[ɔˈpɔr.tɛt]
Etimologia (Anglès)
For *opvortet, from Proto-Indo-European *wortéyeti, causative stem (2nd conjugation) of the root of vertō (“to turn”) (3rd conjugation). Some refer the op- to ob-, some to opus, with which compare the similar expressions opus est and operam dare.
See also ligō, vinciō for other examples of words meaning to bind or turn, having derivatives with the sense of obliging.