Where does “isospazio” come from?

isospazio (Italian) comes from Italian spazio, from Latin spatium, from Proto-Indo-European spéh₁-, from Proto-Indo-European speh₁- — to succeed, to prosper.

isospazio (Italian): isospace

Definitions

isospace

Ancestry of “isospazio”, step by step

isospazio traces back through two separate lines of ancestry.

via Italian spazio

Step	Language	Word	Meaning
1	Italian	spazio	space; room; scope
2	Latin	spatium	Space, room, extent; Distance between points; A...
3	Proto-Indo-European	spéh₁-	to succeed, to prosper
4	Proto-Indo-European	speh₁-	to succeed, to prosper

via Italian isotopico

Step	Language	Word	Meaning
1	Italian	isotopico	isotopic
2	Italian	-ico	-ic
3	Latin	-icus	belonging to; derived from; of or pertaining to;...
4	Proto-Italic	*-ikos	forms adjectives with the sense of 'of or pertaining to'

Every word from Proto-Indo-European speh₁- →Every word from Proto-Indo-European spéh₁- →Every word from Latin spatium →