Where does “extensional” come from?

Extensional derives from English extension, which comes from Latin extensio, a noun formed from the prefix ex- and the root tendo, meaning "to stretch."

extensional (English): Of or pertaining to extension; Having great...

Definitions

  1. Of or pertaining to extension; Having great...

Ancestry of “extensional”, step by step

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

Words derived from “extensional

Every word from Ancient Greek χάλιξ