Where does “Ekòs” come from?

Ekòs (Haitian Creole) comes from French Écosse, from Middle French Escosse, from Old French Escoce, from Latin Scotia, from Ancient Greek σκοτία, from Ancient Greek σκότος, from Proto-Indo-European skh₃tos, from Proto-Indo-European (s)ḱeh₃- — darkness, shadow.

Ancestry of “Ekòs”, step by step

Step	Language	Word	Meaning
1	French	Écosse	—
2	Middle French	Escosse	—
3	Old French	Escoce	—
4	Latin	Scotia	Scotland
5	Ancient Greek	σκοτία	darkness, gloom; scotia, cavetto, so called from...
6	Ancient Greek	σκότος	darkness, gloom
7	Proto-Indo-European	skh₃tos	—
8	Proto-Indo-European	(s)ḱeh₃-	darkness, shadow

Every word from Proto-Indo-European (s)ḱeh₃- →Every word from Proto-Indo-European skh₃tos →Every word from Ancient Greek σκότος →