English perspicacious

← Proto-Indo-European *speḱ- (root)

← Latin perspicācitās (mention)

← Latin perspicax (mention)

← Latin perspiciō (mention)

← Latin per- (mention)

← Latin speciō (mention)

→ English perspicacity (suffix)

→ English perspicaciously (suffix)

→ English perspicaciousness (suffix)

→ English unperspicacious (prefix)