yawp (v.)youdaoicibaDictYouDict[yawp 词源字典]
c. 1300, yolpen, probably echoic variant of yelpen (see yelp). Related: Yawped; yawping. The noun, in reference to speech, is recorded from 1835, now used chiefly in conscious echo of Whitman (1855).[yawp etymology, yawp origin, 英语词源]