Where does “rapheless” come from?

rapheless (English) comes from English raphe, from Ancient Greek ῥαφή, from Ancient Greek -ή, from Ancient Greek -ᾱ, from Proto-Indo-European -éh₂.

rapheless (English): Describing the valve of a monoraphid diatom that...

Definitions

  1. Describing the valve of a monoraphid diatom that...

Ancestry of “rapheless”, step by step

rapheless traces back through two separate lines of ancestry.

via English raphe

StepLanguageWordMeaning
1EnglishrapheA ridge or seam on an organ, bodily tissue, or...
2Ancient Greekῥαφήseam, suture; stitching, sewing of a wound
3Ancient Greeksuffix of feminine nouns in the [[Appendix:Ancient Greek first declension
4Ancient Greek-ᾱnominal suffix
5Proto-Indo-European-éh₂

via English less

StepLanguageWordMeaning
1EnglishlessTo a smaller extent or degree; comparative form...
2Middle Englishlesfalse; lying; deceptive; falsehood; a lie
3Old Englishlēasfalse, lax; false, void, loose; devoid of, loose...
4Proto-Germanic*laus
Every word from Proto-Indo-European -éh₂
rapheless — Etymology, Origin & Word History | Etymology Explorer