Where does “oogamy” come from?

oogamy (English) comes from English oö-, from Ancient Greek ᾠο-, from Ancient Greek ᾠόν, from Proto-Hellenic ōyyón, from Proto-Indo-European h₂ōwyóm, from Proto-Indo-European h₂éwis — bird.

oogamy (English): A form of anisogamy (heterogamy) in which the female gamete (e.g. ovum) is significantly larger than the male gamete (sperm) and is non-motile

Definitions

  1. A form of anisogamy (heterogamy) in which the female gamete (e.g. ovum) is significantly larger than the male gamete (sperm) and is non-motile

Ancestry of “oogamy”, step by step

StepLanguageWordMeaning
1Englishoö-Alternative spelling of oo-; egg
2Ancient Greekᾠο-oo-
3Ancient Greekᾠόνegg; seed
4Proto-Hellenicōyyónegg
5Proto-Indo-Europeanh₂ōwyómegg
6Proto-Indo-Europeanh₂éwisbird
Every word from Proto-Indo-European h₂éwis →Every word from Proto-Indo-European h₂ōwyóm →Every word from Proto-Hellenic ōyyón →