Where does “気合を入れる” come from?

気合を入れる (Japanese) comes from Japanese 入れる, from Japanese 入る, from Old Japanese いる.

気合を入れる (Japanese): to fire up, to psych up, to motivate

Definitions

  1. to fire up, to psych up, to motivate

Ancestry of “気合を入れる”, step by step

気合を入れる traces back through 3 separate lines of ancestry.

via Japanese 入れる

StepLanguageWordMeaning
1Japanese入れるto put (something) in
2Japanese入るto enter, go into, get into; to arrive; to join a...
3Old Japaneseいる

via Japanese

StepLanguageWordMeaning
1JapaneseA case particle; A conjunctive particle, usually...
2Proto-Japonicwoaccusative marker; away from, off

via Japanese 気合

StepLanguageWordMeaning
1Japanese気合yell; spirit, fight
Every word from Old Japanese いるEvery word from Japanese 入るEvery word from Japanese 入れる