Grammar › Character speech · 02 Endings and verbs
〜せぬ: do not (archaic)
Character speech · 02 Endings and verbs
Archaic negative of する: "does not do".
し → せぬ (also せん, せず). Samurai and fantasy dialogue: 許せぬ "unforgivable", 逃げも隠れもせぬ. Modern equivalent: しない. Same pattern as 〜ぬ.
Examples
拙者は逃げも隠れもせぬ。
I will neither run nor hide.
そのような事は決して許せぬ。
Such a thing can never be forgiven.