'test-taker' originates from the combination of 'test' and 'taker', where 'test' meant 'a procedure intended to establish the quality, performance, or reliability of something' and 'taker' referred to 'a person who takes or accepts something'.

'test-taker' evolved from the combination of the words 'test' and 'taker' in modern English.

Initially, it meant 'a person who takes a test', and this meaning has largely remained the same in modern usage.