Where does “declinacioun” come from?

declinacioun (Middle English) comes from Middle French declination, from Latin dēclīnātiō, from Latin -ātiō, from Latin -tiō, from Latin dissertātiō, from Latin dissertus, from Latin disserere, from Latin dis- — small stone, pebble; gravel, rubble.

declinacioun (Middle English): Declination; angle of an object from the celestial equator or occasionally ecliptic

Definitions

Declination; angle of an object from the celestial equator or occasionally ecliptic

Ancestry of “declinacioun”, step by step

Step	Language	Word	Meaning
1	Middle French	declination	—
2	Latin	dēclīnātiō	declination
3	Latin	-ātiō	—
4	Latin	-tiō	tion, -ation, -ing
5	Latin	dissertātiō	(spoken) dissertation, discourse, disquisition
6	Latin	dissertus	arranged, disposed; explained
7	Latin	disserere	second-person singular future passive indicative...
8	Latin	dis-	asunder, apart, in two; reversal, removal;...
9	Latin	calceus	shoe
10	Latin	calx	limestone; chalk; the finish line
11	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

Words derived from “declinacioun”

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