Where does “pilotaleku” come from?

pilotaleku (Basque) comes from Basque pilota, from Spanish pelota, from Latin pila, from Latin pīlus, from Latin pīlum, from Proto-Italic pistlom, from Proto-Indo-European pis-tlo-, from Proto-Indo-European peys- — to grind, to crush.

pilotaleku (Basque): jai alai court

Definitions

jai alai court

Ancestry of “pilotaleku”, step by step

pilotaleku traces back through two separate lines of ancestry.

via Basque pilota

Step	Language	Word	Meaning
1	Basque	pilota	jai alai
2	Spanish	pelota	ball; ball game; testicle
3	Latin	pila	mortar; pillar; pier
4	Latin	pīlus	a hair
5	Latin	pīlum	a pounder, pestle
6	Proto-Italic	pistlom	—
7	Proto-Indo-European	pis-tlo-	—
8	Proto-Indo-European	peys-	to grind, to crush

via Basque leku

Step	Language	Word	Meaning
1	Basque	leku	place; position; surroundings
2	Latin	locus	place, spot; a passage of literature; "in the...
3	Old Latin	stlocus	—
4	Proto-Italic	stlokos	—
5	Proto-Indo-European	stel-	to put, to place; to locate

Every word from Proto-Indo-European peys- →Every word from Proto-Indo-European pis-tlo- →Every word from Proto-Italic pistlom →