thievish

1. Having a tendency to steal.
2. Having the manner of a thief; furtive; stealthy.

Etymology

Inherited from Middle English: thevysch

Cognate with Saterland Frisian: däifsk

Cognate with Dutch: diefs

Cognate with German: diebisch

In summary

From Middle English thevysch, equivalent to thief + -ish. Cognate with Saterland Frisian däifsk (“thievish”), Dutch diefs (“thievish”), German Low German deevsk (“thievish”), German diebisch (“thievish”).

Synonyms

furtive

stealthy

thieving

burglarious

larcenous

light-fingered

slinky

theftful

mischievous

given to stealing

clandestine

surreptitious

thief

dishonest

cunning

cattish

sticky-fingered