Where does “praonklino” come from?

praonklino (Esperanto) comes from Esperanto onklo, from German Onkel, from French oncle, from Middle French oncle, from Old French oncle, from Vulgar Latin aunclum, from Latin avunculus, from Proto-Indo-European h₂éwh₂os — maternal grandfather; maternal uncle.

praonklino (Esperanto): great-aunt

Definitions

great-aunt

Ancestry of “praonklino”, step by step

praonklino traces back through two separate lines of ancestry.

via Esperanto onklo

Step	Language	Word	Meaning
1	Esperanto	onklo	uncle; uncle "or" aunt
2	German	Onkel	uncle
3	French	oncle	uncle
4	Middle French	oncle	uncle
5	Old French	oncle	uncle
6	Vulgar Latin	aunclum	—
7	Latin	avunculus	maternal uncle, mother's brother; mother's...
8	Proto-Indo-European	h₂éwh₂os	maternal grandfather; maternal uncle

via Esperanto ino

Step	Language	Word	Meaning
1	Esperanto	ino	a female
2	Esperanto	-ino	of feminine sex
3	German	-īn	creates the female form for many nouns for living beings; umlaut usually occurs in monosyllables, but rarely in polysyllables
4	Middle High German	-īn	—

Every word from Proto-Indo-European h₂éwh₂os →Every word from Latin avunculus →Every word from Vulgar Latin aunclum →