Where does “idyllium” come from?

idyllium (Latin) comes from Ancient Greek εἰδύλλιον, from Ancient Greek εἶδος, from Spanish -scopio, from Latin -scopium, from Ancient Greek σκοπέω, from Ancient Greek σκοπός, from Ancient Greek σκέπτομαι, from Proto-Hellenic sképťomai — to see, to look, to observe.

Ancestry of “idyllium”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	εἰδύλλιον	short bucolic poem
2	Ancient Greek	εἶδος	That which is seen: form, image, shape;...
3	Spanish	-scopio	-scope
4	Latin	-scopium	—
5	Ancient Greek	σκοπέω	I look, look at, behold; I examine, inspect; 413...
6	Ancient Greek	σκοπός	watcher, lookout; protector, guardian; spy, scout
7	Ancient Greek	σκέπτομαι	I look at, examine; I examine, consider, think
8	Proto-Hellenic	sképťomai	to look at
9	Proto-Indo-European	spéḱyeti	to be looking at, to keep looking at
10	Proto-Indo-European	speḱ-	to see, to look, to observe

Every word from Proto-Indo-European speḱ- →