err
v.
c.1300, from Old French errer "go astray, lose one's way; make a mistake; transgress," from Latin errare "wander, go astray," figuratively "be in error," from PIE root *ers- (1) "be in motion, wander around" (cognates: Sanskrit arsati "flows;" Old English ierre "angry; straying;" Old Frisian ire "angry;" Old High German irri "angry," irron "astray;" Gothic airziþa "error; deception;" the Germanic words reflecting the notion of anger as a "straying" from normal composure). Related: Erred; erring.
词根：err = wander, mistake, 表示“漫游, 犯错误”
err v. 犯错
error n. 错误（err+or)
errant a. 漫游的；错误的（err+ant)
erratum n. 正误表（err+atum表名词→[改正]错误的东西）→正误表）
erroneous a. 错误的（err+oneous…的→错误的）
erratic a. 古怪的n. 怪人（err+atic→[被人认为]错误的→古怪的）
aberrant a. 越轨的；异常的（ab离开+errant错误的→离开[正确]走向错误→越轨的）
aberration n. "越轨；失常（aberrant,后缀ant换成ation)"
inerrancy n. 无错误（in无+err+ancy→无错误）
词根：err 漫游, 走, 行
errant [err漫游，-ant形容词后缀，…的] 周游的，飘泊的
errantry [见上，-ry名词后缀] 游侠行为;游侠
erratic [err漫游，-atic形容词后缀，…的] 飘忽不定的
error [err漫游，走→走离正道→走错，-or抽象名词后缀] 错误，谬误
erring [见上，-ing…的] 做错了事的，走入歧途的
aberrant [ab-离开，err走，-ant…的] 离开正路的，脱离常轨的
aberrance [ab-离开，err走，-ance名词后缀] 离开正道，脱离常轨
aberration [见上，-ation名词后缀] 离开正道，脱离常轨
inerrable [in-不，err走，走离正道→错误，-able可…的] 不会错的，绝对正确的
inerrancy [in-不，err走离正道→错误，-ancy名词后缀] 无错误，绝对正确