Where does “fif” come from?

fif (Middle English) comes from Old English fīf, from Proto-West Germanic fimf, from Proto-Germanic fimf, from Proto-Indo-European pénkʷe — five.

Ancestry of “fif”, step by step

StepLanguageWordMeaning
1Old Englishfīffive
2Proto-West Germanicfimffive
3Proto-Germanicfimffive
4Proto-Indo-Europeanpénkʷefive
Every word from Proto-Indo-European pénkʷe →Every word from Proto-Germanic fimf →Every word from Proto-West Germanic fimf →