Where does “ousar” come from?

ousar (Old Portuguese) comes from Vulgar Latin ausare, from Latin auso, from Latin ausus, from Latin audeō, from Latin avidus, from Latin -idus, from Proto-Italic *-iðos.

Ancestry of “ousar”, step by step

StepLanguageWordMeaning
1Vulgar Latinausarepresent active infinitive of *ausō
2Latinausodative masculine singular of ausus; dative neuter...
3Latinaususdared, having dared, ventured, having ventured,...
4Latinaudeōto dare, venture, risk
5LatinavidusGreedy, avaricious, covetous; Eager,...
6Latin-idustending to
7Proto-Italic*-iðos
Every word from Proto-Italic *-iðosEvery word from Latin -idusEvery word from Latin avidus