devious

Etymology

1590s, "out of the common or direct way," from Latin devius (“out of the way, remote, off the main road”), from de via, from de (“off”) (see de-) + via (“way, road”). Compare deviate. Originally in the Latin literal sense; the figurative sense of "deceitful" is first recorded 1630s. Related to deviously, deviousness. Figurative senses of the Latin word were "retired, sequestered, wandering in the byways, foolish, inconsistent."

adj

1. Cunning or deceiving, not straightforward or honest, not frank.
2. Roundabout, circuitous, deviating from the direct or ordinary route.
   Keeping close in to the shore, they discovered, after two hours run, a fresh stream which burst in a cascade from the mountains, and swept its devious course through the jungle, until it poured its tribute into the waters of the Strait. 1839, Frederick Marryat, The Phantom Ship