'ascitical' originates from New Latin/modern medical formation based on 'ascites' (from Greek), ultimately tracing to Greek 'askos' meaning 'bag' or 'skin'.

'ascitical' developed from the noun 'ascites' (Late Latin/Modern Latin 'ascites', from Greek), with the adjective forms 'ascitic' and later the variant 'ascitical' formed by adding the adjectival suffix '-ical'.

Initially linked to the Greek notion of a 'bag' or swelling, the term came to refer specifically to the medical condition of fluid accumulation in the abdomen (ascites) and things relating to it.