Where does “iĥtiokolo” come from?

iĥtiokolo (Esperanto) comes from Ancient Greek ἰχθυόκολλα, from Ancient Greek ἰχθύς, from Ancient Greek ἀετός, from Proto-Hellenic ayyetós, from Proto-Indo-European h₂ewyetós, from Proto-Indo-European h₂éwis — bird.

iĥtiokolo (Esperanto): isinglass

Definitions

isinglass

Ancestry of “iĥtiokolo”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ἰχθυόκολλα	fish-glue; isinglass
2	Ancient Greek	ἰχθύς	fish
3	Ancient Greek	ἀετός	eagle; the constellation Aquila; omen
4	Proto-Hellenic	ayyetós	—
5	Proto-Indo-European	h₂ewyetós	—
6	Proto-Indo-European	h₂éwis	bird

Every word from Proto-Indo-European h₂éwis →Every word from Proto-Indo-European h₂ewyetós →Every word from Proto-Hellenic ayyetós →