Where does “scotia” come from?

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

scotia (English): A concave molding with a lower edge projecting...

Definitions

A concave molding with a lower edge projecting...

Ancestry of “scotia”, step by step

Step	Language	Word	Meaning
1	Latin	scotia	scotia; a hollow molding in the base of a column;...
2	Ancient Greek	σκοτία	darkness, gloom; scotia, cavetto, so called from...
3	Ancient Greek	σκότος	darkness, gloom
4	Proto-Indo-European	skh₃tos	—
5	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 →