Where does “expelotero” come from?

expelotero (Spanish) comes from Spanish pelotero, 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.

expelotero (Spanish): former baseball player

Definitions

former baseball player

Ancestry of “expelotero”, step by step

Step	Language	Word	Meaning
1	Spanish	pelotero	baseball player
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

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