Where does “Kavala” come from?

Kavala (English) comes from Greek Καβάλα, from Latin caballa, from Latin -a, from Proto-Italic -ā, from Proto-Indo-European -éh₂.

Ancestry of “Kavala”, step by step

Step	Language	Word	Meaning
1	Greek	Καβάλα	equestrianism, horsemanship
2	Latin	caballa	mare
3	Latin	-a	suffixed to the roots of verbs, forms agent...
4	Proto-Italic	-ā	Forms masculine agent nouns from prefixed or compounded bases
5	Proto-Indo-European	-éh₂	—