splay (v.)youdaoicibaDictYouDict[splay 词源字典]
early 14c., "unfold, unfurl;" c. 1400, "to spread out," shortened form of desplayen (see display (v.)). Meaning "to spread out awkwardly" is from 1848. Past participle adjective splayed "spread out" is attested from 1540s.[splay etymology, splay origin, 英语词源]