'anerythroplasia' originates from Greek, specifically the prefix 'an-' meaning 'without', 'erythro-' meaning 'red', and 'plasia' meaning 'formation'.

'anerythroplasia' was formed in modern medical terminology by combining Greek roots to describe the absence of red cell formation, especially in pathological contexts.

Initially, it meant 'absence of red cell formation', and this meaning has remained consistent in medical usage.