'anorchidism' originates from Greek, specifically the prefix 'an-' and the noun 'orchis', where 'an-' meant 'without' and 'orchis' meant 'testicle (literally 'orchid,' from the shape of the gland)'.

'anorchidism' changed from the Medieval/medical Latin term 'anorchidismus' and eventually became the modern English word 'anorchidism'.

Initially, it meant 'the state of being without testicles', and over time it has retained this specific medical meaning in modern usage.