Where does “inkujo” come from?

inkujo (Esperanto) comes from Esperanto inko, from English ink, from Middle English ynke, from Old French enque, from Latin encaustum, from Latin encaustus, from Ancient Greek ἔγκαυστος, from Ancient Greek ἐν- — Creates collective nouns, which refer to groups...

inkujo (Esperanto): inkwell, inkpot

Definitions

inkwell, inkpot

Ancestry of “inkujo”, step by step

Step	Language	Word	Meaning
1	Esperanto	inko	ink
2	English	ink	A pigment -based fluid used for writing, printing...
3	Middle English	ynke	ink
4	Old French	enque	ink
5	Latin	encaustum	the purple-red ink used by the later Roman...
6	Latin	encaustus	burned in, encaustic; the encaustic mode of...
7	Ancient Greek	ἔγκαυστος	burned in
8	Ancient Greek	ἐν-	in, within; on
9	Ancient Greek	ἐν	in, on, at; among; in, at, or during the time of
10	Ancient Greek	δέρμα	skin, hide
11	Ancient Greek	γλυφή	carving, carved work; hole cut
12	Ancient Greek	-ῐ́ᾱ	{{l\|en\|-ia}}; "suffix forming abstract feminine...
13	Proto-Indo-European	-íh₂	—
14	Proto-Indo-European	-h₂	Creates collective nouns, which refer to groups...

Every word from Proto-Indo-European -h₂ →Every word from Ancient Greek -ῐ́ᾱ →Every word from Ancient Greek ἐν- →