Where does “lamentability” come from?

lamentability (English) comes from English ability, from Middle English abilite, from Old French ableté, from Latin habilitās, from Latin habilis, from Latin -ilis, from Proto-Italic -elis, from Proto-Indo-European -elis — Forms agent nouns from verbal roots.

lamentability (English): The state or characteristic of being lamentable

Definitions

  1. The state or characteristic of being lamentable

Ancestry of “lamentability”, step by step

lamentability traces back through two separate lines of ancestry.

via English ability

StepLanguageWordMeaning
1EnglishabilitySuitableness; The quality or state of being able;...
2Middle Englishabilitesuitability, aptitude, ability
3Old Frenchableté
4Latinhabilitāsability, aptitude, fitness
5Latinhabilisable to have/possess/maintain; having sufficient...
6Latin-ilis-ile
7Proto-Italic-elis
8Proto-Indo-European-elis
9Proto-Indo-European-lósForms agent nouns from verbal roots

via English lament

StepLanguageWordMeaning
1EnglishlamentAn expression of grief, suffering, sadness or...
2EnglishlamentationThe act of lamenting; A sorrowful cry; a lament;...
3Latinlamentatiolamentation, wailing, weeping, moaning
4LatinlamentorI lament; I bewail
5Latinlamentumwailing, moaning, weeping; lamentation, lament
6Proto-Italiclāmentom
7Proto-Indo-Europeanleh₂-to bark, howl; to be concealed
Every word from Proto-Indo-European -lós