What is another word for "spring"?

Roget's Thesaurus (1911) lists these synonyms for "spring": about, action, adolescence, adolescent, adown, adult, adultness, age, agitation, amusement, analytical, ance, and, apotheosis, arroba, assume, attain, attollent, aurora, avoirdupois, baby, back, balance, baleen, ballast, basement, beam, below, beneath, bilge, blush, bob, boomerang, bounce, bound, break, breezy, buck, buoy, buoyancy.