adhere
Concise Oxford English Dictionary © 2008 Oxford University Press:
adhere /ədˈhɪə/
▶verb (adhere to)
- 1 stick fast to.
- 2 believe in and follow the practices of.
- 3 represent truthfully and in detail.
– derivatives
adherence noun.
adherence noun.
– origin C15 (earlier (ME) as adherence, adherent): from L. adhaerere, from ad- ‘to’ + haerere ‘to stick’.
'adhere' also found in these Oxford entries:

