Shirabe

凹たれるへこたれる

Ichidan Intransitive
English jmdict
1
Ichidan verbintransitive verb to lose heart;to be discouraged;to be dejected;to be exhausted;to be tired out
成功するまでへこたれるな。
Stick with it and you'll succeed.
Other forms 凹垂れる 【へこたれる】 (search-only kanji form)