える
kumikaeru

Ichidan Verb

1. to rearrange (classes); to recompose; to reset; to recombine (genes)

Transitive
あし あたたかくするために あし交互 こうご えなければならなかった。
ashio atatakakusuru tameni ashio kōgoni kumikaenakereba naranakatta.
In order to keep our feet warm we had to shift from one foot to another and keep moving.
Other forms: