Where does “femtolensing” come from?

femtolensing (English) comes from English lensing, from English lens, from Latin lēns — lentil.

femtolensing (English): A form of gravitational lensing in which the...

Definitions

  1. A form of gravitational lensing in which the...

Ancestry of “femtolensing”, step by step

femtolensing traces back through two separate lines of ancestry.

via English lensing

StepLanguageWordMeaning
1Englishlensingpresent participle of lens; The focussing of...
2EnglishlensAn object, usually made of glass, that focuses or...
3Latinlēnslentil

via English femto

StepLanguageWordMeaning
1Englishfemto—
Every word from Latin lēns →Every word from English lens →Every word from English lensing →