Where does “頑張って” come from?

頑張って (Japanese) comes from Japanese 頑張る, from Japanese 眼張る, from Japanese 我に張る, from Japanese 我, from Old Japanese 我, from Old Japanese れ — nominalizing suffix used to form pronouns, often from demonstratives: one, thing.

Definitions

Ancestry of “頑張って”, step by step

Step	Language	Word	Meaning
1	Japanese	頑張る	to work hard and do one's best to achieve a goal;...
2	Japanese	眼張る	to keep watch on something, to stare at something
3	Japanese	我に張る	to stick to one's beliefs
4	Japanese	我	first person singular pronoun: I, me, oneself;...
5	Old Japanese	我	first-person personal pronoun: I, me;...
6	Old Japanese	れ	nominalizing suffix used to form pronouns, often from demonstratives: one, thing

Words derived from “頑張って”

乾巴得
奸爸爹

Every word from Old Japanese れ →Every word from Old Japanese 我 →Every word from Japanese 我 →