Where does “underexpansion” come from?

underexpansion (English) comes from English expansion, from French expansion, from Latin expansio, from Latin -tiō, from Latin dissertātiō, from Latin dissertus, from Latin disserere, from Latin dis- — small stone, pebble; gravel, rubble.

underexpansion (English): Insufficient expansion

Definitions

  1. Insufficient expansion

Ancestry of “underexpansion”, step by step

underexpansion traces back through two separate lines of ancestry.

via English expansion

StepLanguageWordMeaning
1EnglishexpansionThe act or process of expanding; The fractional...
2Frenchexpansionexpansion
3Latinexpansioexpansion
4Latin-tiōtion, -ation, -ing
5Latindissertātiō(spoken) dissertation, discourse, disquisition
6Latindissertusarranged, disposed; explained
7Latindissereresecond-person singular future passive indicative...
8Latindis-asunder, apart, in two; reversal, removal;...
9Latincalceusshoe
10Latincalxlimestone; chalk; the finish line
11Ancient Greekχάλιξsmall stone, pebble; gravel, rubble

via English under

StepLanguageWordMeaning
1EnglishunderIn or at a lower level than; As a subject of;...
2Middle Englishunderunder
3Old Englishunderunder, beneath
4Proto-Germanicunderamong, between; under, beneath; under
5Proto-Indo-Europeanh₁entérbetween
6Proto-Indo-Europeanh₁enin; in, inside
Every word from Ancient Greek χάλιξ