Where does “unexpensiveness” come from?

unexpensiveness (English) comes from English unexpensive, from English expensive, from Latin expensivus, from Latin expendo, from Latin ex-, from Latin e, from Latin ex, from Latin commūnicō — whale, sea monster; abyss.

unexpensiveness (English): The quality of being unexpensive

Definitions

The quality of being unexpensive

Ancestry of “unexpensiveness”, step by step

unexpensiveness traces back through two separate lines of ancestry.

via English unexpensive

Step	Language	Word	Meaning
1	English	unexpensive	Not expensive; inexpensive
2	English	expensive	Given to expending a lot of money; profligate,...
3	Latin	expensivus	—
4	Latin	expendo	I weigh; I pay out; I judge
5	Latin	ex-	out, away; throughout; thoroughly
6	Latin	e	The name of the letter "E"; out of, from
7	Latin	ex	A name of the letter "X"; out of, from
8	Latin	commūnicō	to impart, share
9	Latin	commūnis	common, commonplace, ordinary, general, universal, shared, shared alike, of both sides, belonging to two or more together
10	Old Latin	com(m)oinis	—
11	Proto-Italic	kommoinis	common
12	Proto-Indo-European	ḱom-moy-ni-	held in common
13	Proto-Indo-European	ḱóm	beside, near, by, with
14	Proto-Indo-European	ḱe	Deictic particle, here; Post-positional...
15	Middle English	kyt	—
16	Russian	кит	whale; genitive plural of ки́та
17	Old Church Slavonic	китъ	whale
18	Ancient Greek	κῆτος	whale, sea monster; abyss

via English Ness

Step	Language	Word	Meaning
1	English	Ness	An Ulster princess and the mother of Conchobar mac Nessa and Findchoem in the Ulster Cycle of Irish mythology. Daughter of Eochaid Sálbuide. Also the mother of Cormac Cond Longas by incest with Conchobar mac Nessa
2	Middle English	nesse	—
3	Old English	næs	not, not at all; not; first/third-person singular...
4	Proto-Germanic	nasją	foothill; headland; cape
5	Proto-Indo-European	néh₂s	nose

Every word from Ancient Greek κῆτος →Every word from Old Church Slavonic китъ →Every word from Russian кит →