wall-eyed (adj.)youdaoicibaDictYouDict[wall-eyed 词源字典]
c. 1300, wawil-eghed, wolden-eiged, "having very light-colored eyes," also "having parti-colored eyes," from Old Norse vagl-eygr "having speckled eyes," from vagl "speck in the eye; beam, upper cross-beam," from Proto-Germanic *walgaz. Meaning "having one or both eyes turned out" (and thus showing much white) is first recorded 1580s.[wall-eyed etymology, wall-eyed origin, 英语词源]