brach (n.)

"bitch hound" (archaic), mid-14c., brache, originally "hound that hunts by scent," from Old French braches "hound, hunting dog," brachez, plural of brachet, a word of West Germanic origin (compare Middle Dutch brache, Old High German braccho "hound, setter"), from PIE root *bhrag- "to smell" (source also of Middle High German bræhen "to smell," Middle Irish bren "putrid, foul," perhaps also Latin fragrare "to smell sweetly"). Italian bracco is a Germanic loan word.