Hearth
来自Big Physics
Old English heorth, of West Germanic origin; related to Dutch haard and German Herd .
wiktionary
From Middle English herth, herthe, from Old English heorþ, from Proto-West Germanic *herþ, possibly from Proto-Indo-European *kerh₃-(“heat; fire”). Cognate with West Frisian hurd, Dutch haard, German Herd, Swedish härd.
etymonline
hearth (n.)
Old English heorð "hearth, fireplace, part of a floor on which a fire is made," also in transferred use "house, home, fireside," from Proto-Germanic *hertha- "burning place" (source also of Old Saxon and Old Frisian herth, Middle Dutch hert, Dutch haard, German Herd "floor, ground, fireplace"), from PIE *kerta-, from root *ker- (3) "heat, fire." Hearth-rug is from 1824. Hearth-stone is from early 14c.