Wurdahuzdą: Proto-Germanic dictionary — *feþur- Scott K. Shay Wardja Press https://protogermanic.org/pgmc_feþur

Single-entry extract from the dictionary. Cross-references to other entries point to their identifiers in the full dictionary.

 *kʷetwóres four *pénkwe five
feþur- ˈɸe.θur ᚠᛖᚦᚢᚱ
prefix four, pertaining to four From pre-Germanic *pétwr̥- from Proto-Indo-European *kʷetwóres; a combining form based on the oblique stem, *kʷetwr̥-, with irregular consonant change of *kw- > *p- based on the following number, *pénkwe, Proto-Germanic *fimf.
Proto-West Germanic fiþur- Old English fiþer-
Proto-Norse *ᚠᛖᚦᚱ- (*feþr-) Old Norse fjaðr-, fer- Danish fjer-
Icelandic fer-
Old Swedish fiæþer-
Gothic 𐍆𐌹𐌳𐌿𐍂- (fidur-)