A person appointed or selected for a particular position, duty, or office; an appointee.
From designate plus -ee (one who receives the action). French-influenced suffix pattern where -ee marks the recipient of an action, as opposed to -or (one who does it).
The -ee ending is clever: 'designator' is the appointer, 'designee' is the appointed person. We use this pattern everywhere—'trustor/trustee,' 'lessor/lessee.' It's a grammatical way to flip who's doing what.
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