altruist

noun

Etymology: Etymology tree Proto-Indo-European *h₂el- Proto-Indo-European *h₂élyos Proto-Italic *aljos Proto-Indo-European *-teros Proto-Italic *-teros Proto-Italic *aliteros Latin alterī Vulgar Latin *alterui Old French autrui French autrui Proto-Indo-European *-id- Proto-Indo-European *-yéti Proto-Indo-European *-idyéti Proto-Hellenic *-íďďō Ancient Greek -ῐ́ζω (-ĭ́zō) Proto-Indo-European *-mos Proto-Indo-European *-mós Ancient Greek -μός (-mós) Ancient Greek -ῐσμός (-ĭsmós)der. Latin -ismusbor. French -isme French altruismebor. English altruism ▲ Ancient Greek -ῐ́ζω (-ĭ́zō) Proto-Hellenic *-tās Ancient Greek -τής (-tḗs) Ancient Greek -ῐστής (-ĭstḗs)bor. Latin -istader. Old French -istebor. Middle English -ist English -ist English altruist See altruism.

1. A person showing altruism.

   “This event couldn't have been possible without the efforts of the altruists who helped in their spare time.”