also: でく
godan verb (iku/yuku class), auxiliary verb
continue to; go on doing
Colloquial contraction of ていく, used as an auxiliary verb after the て/で form. Indicates continuation of an action or process into the future, often with a sense of movement away from the speaker or ongoing change.
これからも勉強してく。
I will keep studying from now on.
この町はこれからもっと変わってくよ
This town is going to keep changing from now on.
だんだん暗くなってくな。
It's getting darker and darker.