suffix, Godan verb

After the -masu stem of a verb.
  1. to stop in the midst of, to leave undone.

Variations

Pronunciation Kanji Kana Is Common
 
止す さす

Contained Kanji Breakdown

stop, halt
と.まる シ どめ (2nd, N4)
divining, fortune-telling, divination or katakana to radical (no. 25)
ボク うらな.う うらない (Kentei Pre-1)