Denshi Jisho — Online Japanese dictionary

わき 1: welling (up); gushing forth (of water); springing out; surging;
2: appearing (esp. suddenly);
3: frothing of water (due to an advancing school of fish)
Noun 
わく 1: to well (up); to gush forth (of water); to spring out; to surge;
2: to appear (esp. suddenly) (sweat, tears, etc.);
3: to feel emotions form (joy, bravery, etc.);
4: to hatch (esp. of parasitic insects, etc.)
Godan verb with ku ending, Intransitive verb 
ゆうせん bubbling or gushing spring; fountain
Noun 
き立つ わきたつ to appear suddenly
Godan verb with tu ending, Intransitive verb 
き出す わきだす to gush out
Godan verb with su ending 
き出る わきでる to gush forth
Ichidan verb, Intransitive verb 
ゆうしゅつ gushing out; welling up; springing up
Noun, Suru verb 
ようしゅつ gushing out; welling up; springing up
Noun, Suru verb 
き上る わきあがる 1: to boil up; to come to the boil; to seethe;
2: to arise; to break out;
3: to get excited; to be in uproar
Godan verb with ru ending, Intransitive verb 
き起る わきおこる to well up; to burst; to arise
Godan verb with ru ending, Intransitive verb 
き起こる わきおこる to well up; to burst; to arise
Godan verb with ru ending, Intransitive verb 

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