Where does “slitless” come from?

slitless (English) comes from English slit, from English slitten, from Old English slītan, from Proto-West Germanic slītan, from Proto-Germanic slītaną, from Proto-Indo-European sleyd-.

slitless (English): Lacking a slit

Definitions

  1. Lacking a slit

Ancestry of “slitless”, step by step

slitless traces back through two separate lines of ancestry.

via English slit

StepLanguageWordMeaning
1EnglishslitA narrow cut or opening; a slot; The opening of...
2Englishslittenpast participle of slit
3Old Englishslītanto slit, tear, rend, shiver, split, rend to...
4Proto-West Germanicslītanto tear apart
5Proto-Germanicslītanąto tear apart
6Proto-Indo-Europeansleyd-

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 sleyd-Every word from Proto-Germanic slītanąEvery word from Proto-West Germanic slītan