'Alex' originates from Greek, specifically the name 'Alexandros,' where 'alexein' meant 'to defend' and 'aner' meant 'man.'

'Alexandros' transformed into the Latin name 'Alexander,' and eventually became the modern English name 'Alex' through Old French and Middle English.

Initially, it meant 'defender of men,' but over time it evolved into a common given name with no specific meaning.