Where does “semideltaic” come from?

semideltaic (English) comes from English deltaic, from French deltaïque, from French -ique, from Middle French -ique, from Old French -ique, from Latin -icus, from Proto-Italic *-ikos — forms adjectives with the sense of 'of or pertaining to'.

semideltaic (English): Somewhat or partly deltaic

Definitions

  1. Somewhat or partly deltaic

Ancestry of “semideltaic”, step by step

semideltaic traces back through two separate lines of ancestry.

via English deltaic

StepLanguageWordMeaning
1EnglishdeltaicOf or pertaining to a river delta; Shaped like...
2Frenchdeltaïquedeltaic; delta
3French-iqueUsed to form adjectives from nouns: -ic, -ical,...
4Middle French-iqueic
5Old French-ique-ic
6Latin-icusbelonging to; derived from; of or pertaining to;...
7Proto-Italic*-ikosforms adjectives with the sense of 'of or pertaining to'

via English semi

StepLanguageWordMeaning
1EnglishsemiA semi-detached house; A semitrailer; a...
2Englishsemi-half; partial, incomplete; somewhat, rather,...
3Latinsēmi-half
4Proto-Indo-Europeansēmihalf; partially
Every word from Proto-Italic *-ikos