Where does “superadditive” come from?

superadditive (English) comes from English additive, from Late Latin additivus, from Latin addere, from Latin addō, from Latin -dō, from Proto-Germanic -dô, from Sicilian di, from Latin dē — afterwards, post; by, at.

superadditive (English): Such that the image of a sum is at least the sum...

Definitions

  1. Such that the image of a sum is at least the sum...

Ancestry of “superadditive”, step by step

superadditive traces back through two separate lines of ancestry.

via English additive

StepLanguageWordMeaning
1EnglishadditivePertaining to addition; that can be, or has been,...
2Late Latinadditivus
3Latinadderesecond-person singular future passive indicative...
4Latinaddōto add
5Latin-dōto put
6Proto-Germanic-dô
7SiciliandiUsed to indicate possession, after the thing owned and before the owner; of; ’s
8Latinof; concerning; about
9Latinpostbehind; after, since, besides, except; behind,...
10Latinposteablative singular of postis
11Proto-Italicpostibehind, after
12Proto-Indo-Europeanpóstiafter
13Proto-Indo-Europeanpósafterwards, post; by, at

via English super

StepLanguageWordMeaning
1EnglishsuperOf excellent quality, superfine; better than...
2Englishsuper-egoAlternative spelling of superego
3GermanÜber-Ichsuperego
4GermanIchego, the Ich; self, me, him, etc
5Middle High GermanichI
6Old High GermanihI
7Proto-West GermanicikI
8Proto-Germanic*ek
9Proto-Indo-Europeanéǵh₂I
Every word from Proto-Indo-European pós