Where does “scotoma” come from?

scotoma (Latin) comes from Ancient Greek σκότωμα, from Ancient Greek σκότος, from Proto-Indo-European skh₃tos, from Proto-Indo-European (s)ḱeh₃- — darkness, shadow.

Ancestry of “scotoma”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	σκότωμα	dizziness
2	Ancient Greek	σκότος	darkness, gloom
3	Proto-Indo-European	skh₃tos	—
4	Proto-Indo-European	(s)ḱeh₃-	darkness, shadow

Words derived from “scotoma”

scotoma
scotomization
scotomaphobia
angioscotoma

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