Where does “unretardable” come from?

unretardable (English) comes from English retardable, from English retard, from Old French retarder, from Latin retardo, from Latin rĕ-, from Latin prōdūcō, from Latin prō-, from Proto-Italic *pro- — passed , crossed.

unretardable (English): Not retardable

Definitions

  1. Not retardable

Ancestry of “unretardable”, step by step

unretardable traces back through two separate lines of ancestry.

via English retardable

StepLanguageWordMeaning
1EnglishretardableCapable of being retarded, or delayed
2EnglishretardRetardation; delay; A slowing down of the tempo;...
3Old Frenchretarderto retard; to delay; to make late
4LatinretardoI hinder, delay, detain, impede or retard
5Latinrĕ-back, backwards
6Latinprōdūcōto lead or bring forth, forward or out
7Latinprō-forward direction, forward movement
8Proto-Italic*pro-pro- see the Latin entry for further meanings
9Proto-Indo-Europeanpro-toward, forward
10Proto-Indo-Europeanpor-to give birth; forward, through; going, passage
11Proto-Indo-Europeanper-before, in front; first; to go through
12Proto-Indo-Europeanpr̥tóspassed , crossed

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Proto-Indo-European pr̥tós
unretardable — Etymology, Origin & Word History | Etymology Explorer