Godan verb with 'ku' endingintransitive verbto feel emotions (e.g. joy, bravery, etc.);to spring up (e.g. an idea, emotions, clouds);to well up;to arise
いざとなれば勇気が湧いてくる。
Your courage will come out in a crisis.
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Godan verb with 'ku' endingintransitive verbto hatch;to breed;to propagate;to be infested (esp. of parasitic insects, etc.)