Etymology

From Proto-Germanic *fadurjô ‎(“paternal uncle”), from Proto-Indo-European *ph₂tḗr ‎(“father”). Akin to Old Frisian federia ‎(“paternal uncle”), Old High German fataro, fatureo, fetiro ‎(“paternal uncle, male cousin”) (whence German Vetter ‎(“male cousin”), Old English fæder ‎(“father”).