もせず

without even

→ も
phrase Rare #41,799
without even A formal or literary pattern meaning “without even doing something” or “not even doing something.” It follows a verb stem or noun, often with emphasis on the omitted action.
JA: 彼は何も言いもせず、部屋を出ていった。
EN: He left the room without even saying anything.

疑問を抱くこともせずそれは大尉あなたのような種類の人間にしかできない

Without ever questioning it, it’s something only people like you, Captain, are capable of.

— パンズ・ラビリンス (2006)

君を知りもせず狂気の沙汰だと思うだろう

They’d think it was madness without even knowing you.

— ラブ・アクチュアリー (2003)

あの子がろくにもせず

That child... without even saying much...

— インディ・ジョーンズ/最後の聖戦 (1989)