the word 'unconscionably' is built upon the core concept of 'conscience', which originates from latin 'conscientia', meaning 'knowledge within oneself, sense of right and wrong'. the prefix 'un-' negates this quality, forming 'unconscionable', an adjective describing actions devoid of moral restraint. the adverbial suffix '-ably', derived from latin '-abilis' via old french, is then added to describe the manner of such action. thus, the literal progression is from 'having no inner moral knowledge' to describing actions performed in a shockingly immoral or excessive way.

Structure: un (not) + conscion (conscience) + ably (manner suffix) un- (old english, a prefix meaning 'not'), conscion (english, a rare or archaic form of 'conscience'), -ably (latin via old french, an adverbial suffix meaning 'in a manner that can be').