What does Draco mean?
Latinized form of Greek Drakon (Drakwn), meaning 'dragon' or 'serpent'. Borne by the 7th-century BCE Athenian lawgiver (source of 'draconian'). Note: one scholarly etymology derives drakon from the aorist stem drak- 'to see clearly', giving an underlying sense 'sharp-sighted'; this is a plausible deeper derivation but a minority reading, and the established dictionary meaning remains 'dragon/serpent'.
What does Isidore mean?
From Greek Isidoros, combining the goddess name Isis + doron 'gift' — 'gift of Isis'. The 'gift' element (doron) is the same one found in Theodore and Dorothea; here the giver is the Egyptian goddess rather than God.