Where does “expansionism” come from?

Expansionism derives from expansion plus the suffix -ism, tracing through Ancient Greek -ισμός and -μός back to Proto-Indo-European -mós, which formed abstract nouns from verbal roots.

expansionism (English): The policy, of a nation, of expanding its...

Definitions

The policy, of a nation, of expanding its...

Ancestry of “expansionism”, step by step

Step	Language	Word	Meaning
1	English	expansion	The act or process of expanding; The fractional...
2	French	expansion	expansion
3	Latin	expansio	expansion
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 “expansionism”

antiexpansionism

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