'abyssolith' originates from Greek, specifically the word 'ábyssos,' where 'a-' meant 'without' and 'byssos' meant 'bottom,' combined with 'lithos' meaning 'stone.'

'ábyssos' combined with 'lithos' in Greek, eventually forming the modern English word 'abyssolith.'

Initially, it meant 'bottomless stone,' but over time it evolved into its current meaning of 'a large, deep-seated igneous intrusion.'