appealyoudaoicibaDictYouDict[appeal 词源字典]
appeal: [14] The ultimate Latin source of appeal, the verb adpellere (formed from the prefix ad- ‘to’ and pellere ‘drive’ – related to anvil, felt, and pulse), seems to have been used in nautical contexts in the sense ‘direct a ship towards a particular landing’. It was extended metaphorically (with a modification in form to appellāre) to mean ‘address’ or ‘accost’, and from these came two specific, legal, applications: ‘accuse’ and ‘call for the reversal of a judgment’. Appeal had both these meanings when it was first adopted into English from Old French apeler.

The former had more or less died out by the beginning of the 19th century, but the second has flourished and led to the more general sense ‘make an earnest request’. Peal [14], as in ‘peal of bells’, is an abbreviated form of appeal, and repeal [14] comes from the Old French derivative rapeler.

=> anvil, felt, peal, pulse, repeal[appeal etymology, appeal origin, 英语词源]
appeal (v.)youdaoicibaDictYouDict
early 14c., originally in legal sense of "to call" to a higher judge or court, from Anglo-French apeler "to call upon, accuse," Old French apeler "make an appeal" (11c., Modern French appeler), from Latin appellare "to accost, address, appeal to, summon, name," iterative of appellere "to prepare," from ad- "to" (see ad-) + pellere "to beat, drive" (see pulse (n.1)). Related: Appealed; appealing.

Probably a Roman metaphoric extension of a nautical term for "driving a ship toward a particular landing." Popular modern meaning "to be attractive or pleasing" is quite recent, attested from 1907 (appealing in this sense is from 1891), from the notion of "to address oneself in expectation of a sympathetic response."
appeal (n.)youdaoicibaDictYouDict
c. 1300, in the legal sense, from Old French apel (Modern French appel), back-formation from apeler (see appeal (v.)). Meaning "call to an authority" is from 1620s; that of "attractive power" attested by 1916.