Where does “gustumi” come from?

gustumi (Esperanto) comes from Esperanto gusti, from Esperanto ĝusta, from French juste, from Old French juste, from Latin iūstus, from Latin iūs, from Latin dīcō, from Latin -tiō — small stone, pebble; gravel, rubble.

gustumi (Esperanto): to taste

Definitions

to taste

Ancestry of “gustumi”, step by step

Step	Language	Word	Meaning
1	Esperanto	gusti	to have a taste
2	Esperanto	ĝusta	right, correct, exact
3	French	juste	fair, just; reasonable, appropriate, grounded;...
4	Old French	juste	—
5	Latin	iūstus	just, righteous
6	Latin	iūs	law, right
7	Latin	dīcō	to say, talk, speak, utter, mention
8	Latin	-tiō	tion, -ation, -ing
9	Latin	dissertātiō	(spoken) dissertation, discourse, disquisition
10	Latin	dissertus	arranged, disposed; explained
11	Latin	disserere	second-person singular future passive indicative...
12	Latin	dis-	asunder, apart, in two; reversal, removal;...
13	Latin	calceus	shoe
14	Latin	calx	limestone; chalk; the finish line
15	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

Every word from Ancient Greek χάλιξ →Every word from Latin -tiō →Every word from Latin dis- →