devious
adj.
1590s, "out of the way," from Latin devius "out of the way, remote, off the main road," from de via (see deviate). Originally in the Latin literal sense; figurative sense of "deceitful" is first recorded 1630s. Related: Deviously; deviousness. Figurative senses of the Latin word were "retired, sequestered, wandering in the byways, foolish, inconsistent."
〔李〕[de-;vi;-ousa.] a.远离大路，偏僻的； 误入歧途的 ←vi (L via)=way 路
〔蒋〕[de-离开，vi道路→大道，正道，-ous形容词后缀，…的] 远离大道的，偏远的，偏僻的，离开正道的