Where does “inextension” come from?

inextension (English) comes from English Extension, from Middle English extensioun, from Old French estension, from Latin extensio, from Latin -tiō, from Latin dissertātiō, from Latin dissertus, from Latin disserere — small stone, pebble; gravel, rubble.

inextension (English): Lack of extension; unextended state

Definitions

  1. Lack of extension; unextended state

Ancestry of “inextension”, step by step

inextension traces back through two separate lines of ancestry.

via English Extension

StepLanguageWordMeaning
1EnglishExtensionThe act of extending; a stretching out; enlargement in length, breadth, or time; an increase
2Middle Englishextensioun
3Old Frenchestension
4Latinextensioextension, stretching; swelling, tumour
5Latin-tiōtion, -ation, -ing
6Latindissertātiō(spoken) dissertation, discourse, disquisition
7Latindissertusarranged, disposed; explained
8Latindissereresecond-person singular future passive indicative...
9Latindis-asunder, apart, in two; reversal, removal;...
10Latincalceusshoe
11Latincalxlimestone; chalk; the finish line
12Ancient Greekχάλιξsmall stone, pebble; gravel, rubble

via English in

StepLanguageWordMeaning
1EnglishinUsed to indicate location, inclusion, or position...
2Middle EnglishinAny kind of accomodation; particularly; A home or...
3Old Englishinin; Alternative form of inn
4Proto-West Germanic*in
Every word from Ancient Greek χάλιξ
inextension — Etymology, Origin & Word History | Etymology Explorer