English
homozygote
From homo- + zygote.
Proto-Indo-European *sem- ‘one, whole’
Proto-Indo-European *somHós ‘same, alike’
Proto-Hellenic *homós
Ancient Greek ὁμός ‘same’
English homo-
Proto-Indo-European *yewg- ‘to yoke, harness, join’
…
Proto-Hellenic *dzugón ‘yoke’
Ancient Greek ζῠγόν ‘the yoke of a plow or carriage’
Ancient Greek ζυγόω ‘to yoke or join together’
Ancient Greek ζῠγωτός ‘yoked’
English zygote
The story
Coined by English biologists William Bateson and Edith Rebecca Saunders in 1902, in a paper titled "The facts of heredity in the light of Mendel’s discovery".
Today it means
noun A diploid individual that has equal alleles at one or more genetic loci.
Language periods are conventional ranges, not dates for this word.
Etymograph / homozygote