flagellate
n.Etymology tree Proto-Indo-European *bʰleh₂-? Proto-Indo-European *-rós Latin flagrum Proto-Indo-European *-lós Proto-Italic *-elos Latin -lus Latin flagellum Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Italic *-āō Latin -ō Latin flagellō Proto-Indo-European *-tós Proto-Italic *-tos Latin -tus Latin flagellātuslbor. English flagellate First attested in 1623; borrowed from Latin flagellātus perfect passive participle of flagellō (“to whip, flog”), see -ate (verb-forming suffix).
First attested in 1867; from flagellum + -ate (adjective-forming suffix) as well as Latin flagellum + -ate. The noun was substantivized from the adjective, see -ate (noun-forming suffix).