LATIN DICTIONARYLexicon Latīnum
verbfirst conjugation

necessō

necessō (present infinitive necessāre, perfect active necessāvī, supine necessātum)

Meaning

  1. Late Latinto render something necessary
    Non cibus et somnus nisi quod natura necessatNo food nor sleep except for what Nature renders necessaryc. 530 CE – c. 600 CE, Venantius Fortunatus, Vita Martini 2.411

nĕcesso, āre, v. a. id.,
I. to render necessary (late Lat.): nam cibus et somnus, nisi quod natura necessat, etc., Ven. Vit. S. Mart. 2, 412.

Origins

Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Indo-European *-h₂tiinflu. Proto-Italic *-ājō Proto-Italic *-āō Latin -ō Latin necessō From necesse + -ō.

Quick answers

What does necessō mean in Latin?
necessō, a verb, means “to render something necessary”.
What are the principal parts of necessō?
necessō, necessāre, necessāvī, necessātum (first conjugation).