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English frith
Old English friþ (derived)
Old English friþu (mention)
Old English friþian (derived)
Old English fyrhþe (inherited)
Old English fyrhþ (mention)
Old English fyrh (cognate)
Danish frede (cognate)
German Frieden (cognate)
English free (mention)
English freath (alter)
English forest (doublet)
English firth (mention)
Middle English frith (derived)
Middle English frithen (derived)
Middle English frith (inherited)
Proto-Germanic *friþuz (derived)
Proto-Germanic *friþōną (derived)
Proto-Germanic *furhiþją (inherited)
Proto-Germanic *furhiþǭ (mention)
Proto-Germanic *furhu (mention)
Proto-Germanic *furahō (mention)
Proto-Germanic *furhō (mention)
Proto-Germanic *friþuz (derived(en/enm))
Proto-West Germanic *friþu (derived)
Proto-West Germanic *furhiþi (inherited)
Old High German forst (cognate)
Old High German foreht (mention)
Proto-Indo-European *priHós (derived)
Proto-Indo-European *prēy- (derived)
Proto-Indo-European *prāy- (mention)
Proto-Indo-European *perkʷ- (root)
Proto-Indo-European *pérkus (derived)
Proto-Indo-European *perkʷ- (mention)
Icelandic friður (cognate)
Icelandic friða (cognate)
Latin quercus (cognate)
Latin foresta (cognate)
Dutch vrede (cognate)
Old Norse fýri (cognate)
Scots frethe (cognate)

English firth (link)
English frithstool (compound)
English grith (mention)
English frithy (suffix)
English frithguild (compound)
Cimbrian friide (cognate)
German Frieden (cognate)
German Friedhof (cognate)
Scottish Gaelic frìth (borrowed)
Luxembourgish Fridden (cognate)