膝をつく

ひざをつく

to fall to one's knees

Meanings

also 膝を突く

  1. expression, godan verb to fall to one's knees; to go down on one's knees (e.g. to express respect)

Its kanji

In sentences

彼かれはがっくりひざをついた。 His knees gave way. #114137

彼かれはがっくりとなりひざをついた。 He collapsed to his knees. #114138