Etymograph > Indo-European > Old English > Dictionary > tācor

husband's brother, brother-in-law

Source: Kroonen 2013:506
originates from: PGmc *taikʷer- "brother-in-law" (taikʷer- > taikʷar > taikwar > taikwær > tākwær > tākær > tāker) through pgmc-to-oe
(source: Kroonen 2013:506)
Variations
tācur "husband's brother, brother-in-law"