'anorchism' originates from New Latin, specifically the word 'anorchismus', where 'an-' meant 'without' and 'orchis' meant 'testicle'.

'anorchism' changed from Greek 'anorchismos' and New Latin 'anorchismus' and eventually became the modern English word 'anorchism'.

Initially, it meant 'a condition of lacking one or both testicles', and over time it has remained a clinical term describing congenital absence or, in some contexts, acquired absence of testes.