'admittee' originates from the English word 'admit,' combined with the suffix '-ee,' which indicates a person who is the recipient of an action.

'admit' changed from the Latin word 'admittere,' which meant 'to allow to enter,' and eventually became the modern English word 'admit.'

Initially, it meant 'to allow entry,' and over time it evolved into its current meaning of 'a person who is allowed entry.'