parallelyoudaoicibaDictYouDict[parallel 词源字典]
parallel: [16] Etymologically, parallel simply means ‘beside each other’. It comes via French parallèle and Latin parallēlus from Greek parállēlos. This was a compound formed from pará ‘beside’ and allélōn ‘each other’, a derivative of állos ‘other’ (to which English else is distantly related).
=> else[parallel etymology, parallel origin, 英语词源]
parallel (adj.)youdaoicibaDictYouDict
1540s, from Middle French parallèle (16c.) and directly from Latin parallelus, from Greek parallelos "parallel," from para allelois "beside one another," from para- "beside" (see para- (1)) + allelois "each other," from allos "other" (see alias (adv.)). As a noun from 1550s. Parallel bars as gymnastics apparatus are recorded from 1868.
parallel (v.)youdaoicibaDictYouDict
1590s, from parallel (n.).