Where does “pentaprismatic” come from?

pentaprismatic (English) comes from English prismatic, from French prismatique, 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'.

pentaprismatic (English): In the form of a pentaprism

Definitions

  1. In the form of a pentaprism

Ancestry of “pentaprismatic”, step by step

pentaprismatic traces back through two separate lines of ancestry.

via English prismatic

StepLanguageWordMeaning
1EnglishprismaticOf or pertaining to a prism; having the form of a...
2Frenchprismatiqueprismatic
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 penta

StepLanguageWordMeaning
1Englishpenta
Every word from Proto-Italic *-ikosEvery word from Latin -icusEvery word from French -ique