unentbehrlich
From LSJ
ὃ γὰρ βούλεται, τοῦθ' ἕκαστος καὶ οἴεται → what he wishes to be true, each person also believes to be true | what he wishes, each person also believes
German > Latin
unentbehrlich, necessarius, zu etwas, ad alqd. – ganz un., pernecessarius; maxime necessarius (z.B. Bedürfnis, res). – es ist mir etw. un., alqā re haud facile careo. – Unentbehrlichkeit, necessitas.