Where does “undeceivableness” come from?

undeceivableness (English) comes from English undeceivable, from English deceivable, from Middle English deceyvable, from Middle English deceyven, from Anglo-Norman deceivre, from Latin dēcipiō, from Latin dē-, from Latin dē — afterwards, post; by, at.

undeceivableness (English): The quality of being undeceivable

Definitions

  1. The quality of being undeceivable

Ancestry of “undeceivableness”, step by step

undeceivableness traces back through two separate lines of ancestry.

via English undeceivable

StepLanguageWordMeaning
1EnglishundeceivableNot deceivable
2EnglishdeceivableAble to be deceived; gullible; Deceitful
3Middle EnglishdeceyvableDeceptive, misleading; giving a false impression
4Middle EnglishdeceyvenTo deceive, trick, or mislead
5Anglo-Normandeceivre
6Latindēcipiōto catch, ensnare, entrap, deceive, mislead, beguile, elude, cheat
7Latindē-of; from
8Latinof; concerning; about
9Latinpostbehind; after, since, besides, except; behind,...
10Latinposteablative singular of postis
11Proto-Italicpostibehind, after
12Proto-Indo-Europeanpóstiafter
13Proto-Indo-Europeanpósafterwards, post; by, at

via English Ness

StepLanguageWordMeaning
1EnglishNessAn Ulster princess and the mother of Conchobar mac Nessa and Findchoem in the Ulster Cycle of Irish mythology. Daughter of Eochaid Sálbuide. Also the mother of Cormac Cond Longas by incest with Conchobar mac Nessa
2Middle Englishnesse
3Old Englishnæsnot, not at all; not; first/third-person singular...
4Proto-Germanicnasjąfoothill; headland; cape
5Proto-Indo-Europeannéh₂snose
Every word from Proto-Indo-European pósEvery word from Latin dē-Every word from Proto-Indo-European pósti