Meaning

noun faithful support for a cause or political party or religion

noun the property of sticking together (as of glue and wood) or the joining of surfaces of different composition

originEtymology tree Proto-Indo-European *h₂éd Proto-Italic *ad Proto-Italic *ad- Latin ad- Latin haereō Latin adhaereō Latin adhaerēns Proto-Indo-European *-yós Proto-Italic *-ios Old Latin -ios Latin -ius Latin -ia Medieval Latin adhaerentiader. Middle French adhérenceder. English adherence From Middle French adhérence, from Latin adhærentia.

Etymology from Wiktionary, CC BY-SA 3.0