Where does “oötheca” come from?

oötheca (English) comes from English theca, from Latin thēca, from Ancient Greek θήκη, from Ancient Greek τίθημι, from Proto-Indo-European dʰeh₁- — to do, put, place.

oötheca (English): Alternative spelling of ootheca

Definitions

Alternative spelling of ootheca

Ancestry of “oötheca”, step by step

oötheca traces back through two separate lines of ancestry.

via English theca

Step	Language	Word	Meaning
1	English	theca	Any external case or sheath; The pollen-producing...
2	Latin	thēca	a case, envelope, sheath
3	Ancient Greek	θήκη	box, chest; grave, tomb; sword sheath
4	Ancient Greek	τίθημι	I put, place, set; I make, cause to be; I make
5	Proto-Indo-European	dʰeh₁-	to do, put, place

via English oo

Step	Language	Word	Meaning
1	English	oo	The Greek letter omega; Any of four Hawaiian...
2	Hawaiian	ʻōʻō	oo, the extinct members of the Moho genus of honeyeaters
3	Proto-Polynesian	*koho	—
4	Proto-Oceanic	*kojom	—

Words derived from “oötheca”

Every word from Proto-Indo-European dʰeh₁- →Every word from Ancient Greek τίθημι →Every word from Ancient Greek θήκη →