Quick answer
Algernon is a boy name meaning "having a moustache".
Pronunciation: American English /ˈæl.d͡ʒəɹ.nən/; American English /ˈæl.ɡəɹ.nən/; British English /ˈæl.d͡ʒə.nən/.
Meaning and history
Originally a Norman French nickname, derived from aux gernons "having a moustache", which was applied to William de Percy, a companion of William the Conqueror. It was first used a given name in the 15th century (for a descendant of William de Percy). This name was borne by a character (a mouse) in the short story Flowers for Algernon (1958) and novel of the same title (1966) by the American author Daniel Keyes.
Notes and context
Usage: english