Origin of impregnable1
Examples from the Web for impregnability
That is an astonishing spell of impregnability, one that looked set to last through to a penalty shoot-out tonight.
The time came, however, when the ramparts we scaled rose sheer and bare in impregnability.The Forest|Stewart Edward White
Our victory was owing to the small numbers of the attacking force, as well as to the impregnability of the fortress.Latitude 19 degree|Mrs. Schuyler Crowninshield
I know they would; after Liege and Namur one knows that modern guns can outlaw any impregnability of the past.The Spell of Scotland|Keith Clark
British Dictionary definitions for impregnability (1 of 2)
Word Origin for impregnable
British Dictionary definitions for impregnability (2 of 2)
Word Origin and History for impregnability
early 15c., imprenable "impossible to capture," from Middle French imprenable "invulnerable," from assimilated form of in- "not, opposite of" (see in- (1)) + Old French prenable "assailable, vulnerable" (see pregnable). With intrusive -g- 16c., on model of deign, reign, etc. Related: Impregnability.