Irish arsanaic

← English arsenic (borrowed)

← Middle English arsenik (derived)

← Middle French arsenic (derived)

← Ancient Greek ἀρσενικόν (derived)

← Ancient Greek ἀρσενικός (mention)

← Proto-Indo-European *ǵʰelh₃i (derived)

← Latin arsenicum (derived)

← Undetermined *zarnīk (mention)

← Undetermined *zarniya-ka- (mention)

→ Irish arsanach (affix)

→ Irish arsanúil (affix)