IPA: /ˈbʌkəli/
KK: /ˈbʌkəli/
In a manner related to the inside of the cheek or mouth.
The medication was administered buccally for faster absorption.
Buccally is derived from "bucca" (meaning cheek) in Latin, combined with the adverbial suffix "-ly" (meaning in a manner of). The term "buccally" refers to something done in the manner of or relating to the cheek.
Think of 'bucca' meaning cheek, and remember that 'buccally' describes something done in relation to the cheek.