'anematize' originates from Greek, specifically the word 'anēmia,' where 'an-' meant 'without' and 'haima' meant 'blood,' later adapted in scientific English to mean 'to render insensible.'

'anematize' was formed in scientific English from Greek roots in the 19th century, modeled after similar medical terms like 'anesthetize.'

Initially, it meant 'to deprive of sensation (especially by removing blood or using anesthesia),' but over time it became a rare or obsolete synonym for 'anesthetize.'