nicknameyoudaoicibaDictYouDict
nickname: [14] A nickname is etymologically an ‘additional name’. The word was originally ekename, whose eke ‘addition’ was a derivative of the verb eke (as in ‘eke out’). But by the 15th century an ekename was becoming misinterpreted as a nekename – hence nickname (the same process produced newt [15] from ewt, ancestor of modern English eft ‘newt’, and the reverse happened to adder, apron, and umpire).
=> eke
nickname (n.)youdaoicibaDictYouDict
mid-15c., misdivision of ekename (c. 1300), an eke name, literally "an additional name," from Old English eaca "an increase," related to eacian "to increase" (cognate with Old Norse auknafn, Swedish öknamn, Danish ögenavn; see eke; also see N). As a verb from 1530s. Related: Nicknamed; nicknaming.