What does Bellamy mean?
From Old French bel ami 'beautiful/fine friend' (bel from Latin bellus 'beautiful' + ami 'friend'). NOTE: 'beautiful' here modifies 'friend' (a fine or handsome companion) rather than naming beauty outright, but the bellus root is explicit.
What does Augustin mean?
Augustin is the French form of Augustine, “great, venerable.”