adjective[predic., usually with negative]
late 16th century: from Latin aversus 'turned away from', past participle of avertere (see avert)
1 On the confusion of averse and adverse, see adverse (usage)2 Traditionally, and according to Dr Johnson, averse from is preferred to averse to. The latter is condemned on etymological grounds (the Latin root translates as ‘turn from’). However, averse to is entirely consistent with ordinary usage in modern English (on the analogy of hostile to, disinclined to, etc.) and is part of normal standard English, while averse from is now very uncommon.