Where does “ekstensi” come from?

ekstensi (Malay) comes from Indonesian ekstensi, from Dutch extensie, from French extension, from Old French estension, from Latin extensio, from Latin -tiō, from Latin dissertātiō, from Latin dissertus — small stone, pebble; gravel, rubble.

ekstensi (Malay): extension: a movement at a joint that increases the angle between the two ends of the joint; the opposite of flexion

Definitions

extension: a movement at a joint that increases the angle between the two ends of the joint; the opposite of flexion

Ancestry of “ekstensi”, step by step

Step	Language	Word	Meaning
1	Indonesian	ekstensi	extension
2	Dutch	extensie	extension act of extending
3	French	extension	extension
4	Old French	estension	—
5	Latin	extensio	extension, stretching; swelling, tumour
6	Latin	-tiō	tion, -ation, -ing
7	Latin	dissertātiō	(spoken) dissertation, discourse, disquisition
8	Latin	dissertus	arranged, disposed; explained
9	Latin	disserere	second-person singular future passive indicative...
10	Latin	dis-	asunder, apart, in two; reversal, removal;...
11	Latin	calceus	shoe
12	Latin	calx	limestone; chalk; the finish line
13	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

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