Where does “antisecession” come from?

antisecession (English) comes from English secession, from Latin sēcessiō, from Latin -tiō, from Latin dissertātiō, from Latin dissertus, from Latin disserere, from Latin dis-, from Latin calceus — small stone, pebble; gravel, rubble.

antisecession (English): Opposing or preventing secession

Definitions

Opposing or preventing secession

Ancestry of “antisecession”, step by step

antisecession traces back through two separate lines of ancestry.

via English secession

Step	Language	Word	Meaning
1	English	secession	The act of seceding
2	Latin	sēcessiō	A going aside, withdrawal, retirement
3	Latin	-tiō	tion, -ation, -ing
4	Latin	dissertātiō	(spoken) dissertation, discourse, disquisition
5	Latin	dissertus	arranged, disposed; explained
6	Latin	disserere	second-person singular future passive indicative...
7	Latin	dis-	asunder, apart, in two; reversal, removal;...
8	Latin	calceus	shoe
9	Latin	calx	limestone; chalk; the finish line
10	Ancient Greek	χάλιξ	small stone, pebble; gravel, rubble

via English anti

Step	Language	Word	Meaning
1	English	anti	Opposed to something; That has a torsion angle...
2	English	anti-	Against, hostile to; Contrasting with the norm;...
3	Ancient Greek	ἀντι-	anti-, against; like, reminiscent of
4	Ancient Greek	ᾰ̓ντῐ́	opposite

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