Godan verb, す verb - precursor to the modern する, transitive verb

  1. to use as an intermediary, to mediate, to assist.
  2. to worry, to mind, to care.

Variations

Pronunciation Kanji Kana Is Common
 
介す かいす

Contained Kanji Breakdown

jammed in, shellfish, mediate
カイ すけ ゆき (7th, N2)
person
ひと ニン ジン (1st, N5)
katakana no radical (no. 4)
ヘツ えい よう (Kentei 1)
number one, line, rod radical (no. 2)
コン シ ジョ