to well (up); to gush out (of water); to appear (esp. suddenly) (sweat, tears, etc.); to sweat; to feel emotions (e.g. joy, bravery, etc.); to spring up (e.g. an idea, emotions, clouds)
to gush forth (e.g. water from a spring); to flow (out); to well up (of tears, emotions, etc.); to flow out (of tears); to emerge; to suddenly appear