ˈthēvish, -vēsh adjective
Etymology: Middle English thevysch, thefyisch, from thef, theef thief + -ysch, -ish -ish
1. obsolete : infested by thieves
bid me … walk in thievish ways — Shakespeare
2.
a. : given to stealing
thievish magpies
b. : of, relating to, or characteristic of a thief : stealthy , sly
• thiev·ish·ly adverb
• thiev·ish·ness noun -es