Where does “semilens” come from?

semilens (English) comes from English semi, from English semi-, from Latin sēmi-, from Proto-Indo-European sēmi — half; partially.

semilens (English): The half of a lens divided along a plane passing...

Definitions

  1. The half of a lens divided along a plane passing...

Ancestry of “semilens”, step by step

semilens traces back through two separate lines of ancestry.

via English semi

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

via English lens

StepLanguageWordMeaning
1EnglishlensAn object, usually made of glass, that focuses or...
2Latinlēnslentil
Every word from Proto-Indo-European sēmi →Every word from English semi- →Every word from English semi →