Where does “postextension” come from?

postextension (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.

postextension (English): Following extension

Definitions

  1. Following extension

Ancestry of “postextension”, step by step

postextension 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 post

StepLanguageWordMeaning
1EnglishpostA long dowel or plank protruding from the ground;...
2Middle Frenchposte
3Italianpostamail, post; post office; stakes
4Latinprobāre
5Latinprobōto approve, permit, commend
6LatinProbusgood, serviceable, excellent, superior, able
7Proto-Indo-Europeanpro-bhwo-being in front, prominent
8Proto-Indo-Europeanpro-toward, forward
9Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
10Proto-Indo-Europeanper-before, in front; first; to go through
11Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Ancient Greek χάλιξEvery word from Latin -tiōEvery word from Latin dis-