クツ

かが.む、かが.める

屈, 尸, 出, 山, 凵

yield, bend, flinch, submit

理屈(りくつ): theory; reason
窮屈(きゅうくつ): narrow; tight; stiff; rigid; uneasy; formal; constrained
屈折(くっせつ): (1) bending; indentation (2) refraction (3) inflection (4) warping (e.g. of opinion, reasoning, etc.); distortion
退屈(たいくつ): tedium; boredom