Where does “bibliotheca” come from?

bibliotheca (Interlingua) comes from French bibliothèque, from Middle French bibliotheque, from Latin bibliothēca, from Ancient Greek βιβλιοθήκη, from Ancient Greek -θήκη, from Ancient Greek θήκη, from Ancient Greek τίθημι, from Proto-Indo-European dʰeh₁- — to do, put, place.

bibliotheca (Interlingua): library

Definitions

library

Ancestry of “bibliotheca”, step by step

bibliotheca traces back through 3 separate lines of ancestry.

via French bibliothèque

Step	Language	Word	Meaning
1	French	bibliothèque	library; bookcase
2	Middle French	bibliotheque	—
3	Latin	bibliothēca	a library room for books or collection of books
4	Ancient Greek	βιβλιοθήκη	bookcase; library; records office
5	Ancient Greek	-θήκη	deverbal suffix, typically indicating a space in which things are put or stored
6	Ancient Greek	θήκη	box, chest; grave, tomb; sword sheath
7	Ancient Greek	τίθημι	I put, place, set; I make, cause to be; I make
8	Proto-Indo-European	dʰeh₁-	to do, put, place

via Italian biblioteca

Step	Language	Word	Meaning
1	Italian	biblioteca	library; bookcase

via Russian библиоте́ка

Step	Language	Word	Meaning
1	Russian	библиоте́ка	library in all senses

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