Where does “tekla” come from?

tekla (Basque) comes from Spanish tecla, from Medieval Latin thēcula, from Latin thēca, from Ancient Greek θήκη, from Ancient Greek τίθημι, from Proto-Indo-European dʰeh₁- — to do, put, place.

tekla (Basque): key

Definitions

Ancestry of “tekla”, step by step

Step	Language	Word	Meaning
1	Spanish	tecla	key, button
2	Medieval Latin	thēcula	—
3	Latin	thēca	a case, envelope, sheath
4	Ancient Greek	θήκη	box, chest; grave, tomb; sword sheath
5	Ancient Greek	τίθημι	I put, place, set; I make, cause to be; I make
6	Proto-Indo-European	dʰeh₁-	to do, put, place

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