'ascaridiasis' originates from New Latin/medical formation, ultimately from Greek 'askaris' meaning 'intestinal roundworm' combined with the suffix '-iasis' (from Greek) meaning 'disease or abnormal condition'.

'ascaridiasis' was formed in modern medical Latin by combining 'ascarid' (from Greek 'askaris' or Latinized 'ascaris') with the Greek-derived suffix '-iasis', and was adopted into English in medical literature in the late 19th to early 20th century.

Initially used to denote disease caused by Ascaris-type worms, its meaning has remained stable and still refers to infection by ascarid (roundworm) parasites.