Where does “unioval” come from?

unioval (English) comes from English Oval, from Late Latin ovalis, from Latin ōvum, from Latin -ātus, from Proto-Italic -ātos, from Proto-Indo-European -éh₂tos — Forms adjectives from nouns, indicating the possession of a thing or a quality.

unioval (English): Relating to, or derived from, a single ovum

Definitions

Relating to, or derived from, a single ovum

Ancestry of “unioval”, step by step

unioval traces back through two separate lines of ancestry.

via English Oval

Step	Language	Word	Meaning
1	English	Oval	A cricket ground in South London
2	Late Latin	ovalis	Of or pertaining to an ovation
3	Latin	ōvum	egg
4	Latin	-ātus	ed
5	Proto-Italic	-ātos	—
6	Proto-Indo-European	-éh₂tos	Forms adjectives from nouns, indicating the possession of a thing or a quality

via English uni

Step	Language	Word	Meaning
1	English	uni	University; Sea urchin eaten as sushi
2	Japanese	雲丹	the food made from the roe of sea urchin,...

Every word from Proto-Indo-European -éh₂tos →Every word from Latin -ātus →Every word from Latin ōvum →