soar v.

word-forming element, in English meaning usually "out of, from," but also "upwards, completely, deprive of, without," and "former;" from Latin ex "out of, from within; from which time, since; according to; in regard to," from PIE *eghs "out" (source also of Gaulish ex-, Old Irish ess-, Old Church Slavonic izu, Russian iz). In some cases also from Greek cognate ex, ek. PIE *eghs had comparative form *eks-tero and superlative *eks-t(e)r-emo-. Often reduced to e- before -b-, -d-, -g-, consonantal -i-, -l-, -m-, -n-, -v- (as in elude, emerge, evaporate, etc.).

1870 in spiritualism, "subtle emanation around living beings;" earlier "characteristic impression" made by a personality (1859), earlier still "an aroma or subtle emanation" (1732). Also used in some mystical sense in Swedenborgian writings (by 1847). All from Latin aura "breeze, wind, the upper air," from Greek aura "breath, cool breeze, air in motion" (from PIE *aur-, from root *wer- (1) "to raise, lift, hold suspended").

The word was used in the classical literal sense in Middle English, "gentle breeze" (late 14c.). The modern uses all are figurative. In Latin and Greek, the metaphoric uses were in reference to changeful events, popular favor.