PIE *gwhenから、打つ、殺す。語源的にはgun、銃と同じ。 defend、追い払う、防御する。
英語の語源
bane (n.)
Old English bana "killer, slayer, murderer; the devil," from Proto-Germanic *banon, cognate with *banja- "wound" (cognates: Old Frisian bona "murderer," Old Norse bani, Old High German bana "murder," Old English benn "wound," Gothic banja "stroke, wound"), from PIE root *gwhen- "to strike, kill, wound" (cognates: Avestan banta "ill"). Modern sense of "that which causes ruin or woe" is from 1570s.