Where does “deductability” come from?

deductability (English) comes from English deduct, from Latin deductus, from Latin dēdūcō, from Latin dē-, from Latin dē, from Latin post, from Latin poste, from Proto-Italic posti — afterwards, post; by, at.

deductability (English): Alternative form of deductibility

Definitions

  1. Alternative form of deductibility

Ancestry of “deductability”, step by step

deductability traces back through two separate lines of ancestry.

via English deduct

StepLanguageWordMeaning
1EnglishdeductTo take one thing from another; remove from; make...
2Latindeductusled or escorted away; attenuated, slender, fine
3Latindēdūcōto lead or bring out or away, divert; escort, accompany, conduct (out of one's house as a mark of respect or for protection)
4Latindē-of; from
5Latinof; concerning; about
6Latinpostbehind; after, since, besides, except; behind,...
7Latinposteablative singular of postis
8Proto-Italicpostibehind, after
9Proto-Indo-Europeanpóstiafter
10Proto-Indo-Europeanpósafterwards, post; by, at

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
Every word from Proto-Indo-European pósEvery word from Latin dē-Every word from Proto-Indo-European pósti