abysmal

the word 'abysmal' originates from the late latin term abysmus, which itself derives from the greek abyssos, meaning 'bottomless' (from 'a-' meaning 'without' and 'byssos' meaning 'bottom'). this ancient term for a profound, immeasurable depth entered english via old french as 'abysm' or 'abyss'. the adjective-forming suffix '-al' was added, creating a word that literally means 'of or relating to an abyss'. over time, the metaphorical sense of something being as profoundly low or immeasurably bad as a bottomless pit became the dominant meaning, while the literal sense of 'very deep' is now less common.

Structure: abysm (abyss) + al (adjective suffix) abysm (from late latin abysmus, from greek abyssos meaning 'bottomless'); al (from latin -alis, an adjective-forming suffix meaning 'of, relating to').