mid-14c., "jest, make light of something;" mid-15c., "ridicule, mock," from a noun meaning "contemptuous ridicule" (c. 1300), which is from a Scandinavian source such as Old Norse skaup, skop "mockery, ridicule," Middle Danish skof "jest, mockery;" perhaps from Proto-Germanic *skub-, *skuf- (source also of Old English scop "poet," Old High German scoph "fiction, sport, jest, derision"), from PIE *skeubh- "to shove" (see shove (v.)). Related: Scoffed; scoffing.
word-forming element in nouns of act, process, function, condition, from Old French and French -age, from Late Latin -aticum "belonging to, related to," originally neuter adjectival suffix, from PIE *-at- (source of Latin -atus, past participle suffix of verbs of the first conjugation) + *-(i)ko-, secondary suffix forming adjectives (see -ic).
<a href="https://www.etymonline.com/word/scoffage">Etymology of scoffage by etymonline</a>
Harper, D. (n.d.). Etymology of scoffage. Online Etymology Dictionary. Retrieved $(datetime), from https://www.etymonline.com/word/scoffage