Where does “bibliotecari” come from?

bibliotecari (Catalan) comes from Catalan biblioteca, 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.

bibliotecari (Catalan): library; librarian

Definitions

library; librarian

Ancestry of “bibliotecari”, step by step

bibliotecari traces back through two separate lines of ancestry.

via Catalan biblioteca

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

via Catalan ari

Step	Language	Word	Meaning
1	Catalan	ari	Aryan

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