Where does “acorne” come from?

acorne (Middle English) comes from Middle English akern, from Old English ǣcern, from Proto-Germanic akraną, from Proto-Indo-European h₂ógeh₂ — small fruit ~ berry; berry, fruit.

Ancestry of “acorne”, step by step

StepLanguageWordMeaning
1Middle Englishakern—
2Old Englishǣcernacorn, oak-mast
3Proto-Germanicakranąacorn
4Proto-Indo-Europeanh₂ógeh₂small fruit ~ berry; berry, fruit
Every word from Proto-Indo-European h₂ógeh₂ →Every word from Proto-Germanic akraną →Every word from Old English ǣcern →