soar (v.)youdaoicibaDictYouDict
late 14c., from Old French essorer "fly up, soar," from Vulgar Latin *exaurare "rise into the air," from Latin ex- "out" (see ex-) + aura "breeze, air" (see aura). Of mountains, buildings, etc., by 1812; of prices, emotions, etc. from 1929. Related: Soared; soaring.
spring (v.)youdaoicibaDictYouDict
Old English springan "to leap, burst forth, fly up; spread, grow," (class III strong verb; past tense sprang, past participle sprungen), from Proto-Germanic *sprengan (cognates: Old Norse, Old Frisian springa, Middle Dutch springhen, Dutch Related: springen, Old Saxon and Old High German springan, German springen), from PIE *sprengh-, nasalized form of root *spergh- "to move, hasten, spring" (cognates: Sanskrit sprhayati "desires eagerly," Greek sperkhesthai "to hurry").

In Middle English, it took on the role of causal sprenge, from Old English sprengan (as still in to spring a trap, etc.). Meaning "to cause to work or open," by or as by a spring mechanism, is from 1828.Meaning "to announce suddenly" (usually with on) is from 1876. Meaning "to release" (from imprisonment) is from 1900. Slang meaning "to pay" (for a treat, etc.) is recorded from 1906.