Where does “allomorf” come from?

allomorf (Polish) comes from Polish allo-, from Ancient Greek ἄλλος, from Proto-Hellenic áľľos, from Proto-Indo-European h₂élyos, from Proto-Indo-European h₂él- — to grow, nourish.

Ancestry of “allomorf”, step by step

StepLanguageWordMeaning
1Polishallo-allo
2Ancient Greekἄλλοςother, another, different, else; in combination...
3Proto-Hellenicáľľosother, another
4Proto-Indo-Europeanh₂élyosother, another
5Proto-Indo-Europeanh₂él-to grow, nourish
Every word from Proto-Indo-European h₂él- →Every word from Proto-Indo-European h₂élyos →Every word from Proto-Hellenic áľľos →