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

Single-entry extract from the dictionary. Cross-references to other entries point to their identifiers in the full dictionary.
kirnijǭ ˈker.ni.jɔ̃ː ᚲᛁᚱᚾᛁᛃᛟ
noun feminine ōn-stem a churn Derived from Proto-Germanic *kernǭ (‘creme’)? Alternatively, the latter word is a backformation from this one. Possibly, they are related to *kernô (‘core’), which is related to *kurną (‘corn, grain’); yet this is disputed.
kirnijǭ
kirnijōniz
kirnijōnų
kirnijōnunz
kirnijōniz
kirnijōnǫ̂
kirnijōni
kirnijōmaz
kirnijōnē
kirnijōmiz
kirnijǭ
kirnijōniz
Proto-West Germanic *kirnijā Walloon serene
Proto-West Germanic *kirnijā Old Dutch *kirna Middle Dutch kerne, keerne Dutch karn Afrikaans karring
Proto-West Germanic *kirnijā Old English ċirin, ċyrin Middle English chyrne, cherine, cherne, cheyrne, chirne, kirne, kyrn, kyrne English churn, kern
Scots kirn, kern, kurn, curn
Proto-West Germanic *kirnijā Old Frisian *tzerne East Frisian ?
North Frisian ?
West Frisian tsjerne
Proto-West Germanic *kirnijā Old Saxon ? Middle Low German kerne, kirne, karne German Karn, Kirne, Kerne
Latvian ķērne
Low German Karne
Old Norse kirna Danish kærne, kjærne, kjerne
Faroese kirna
Icelandic kirna
Norwegian kinne
Old Norse kirna Old Swedish kirna, kerna Swedish kärna
Proto-Finnic *kirnu