Origin: 1175–1225; ME < OF < L (
g)
nōbilis notable, of high rank, equiv. to (
g)
nō-, base of (
g)
nōscere to get to know, find out (
see know 1 ) +
-bilis -ble 
Related forms: no⋅ble⋅ness, noun
Synonyms:
3. highborn, aristocratic. 4. honorable. Noble, high-minded, magnanimous agree in referring to lofty principles and loftiness of mind or spirit. Noble implies a loftiness of character or spirit that scorns the petty, mean, base, or dishonorable: a noble deed. High-minded implies having elevated principles and consistently adhering to them: a high-minded pursuit of legal reforms. Magnanimous suggests greatness of mind or soul, esp. as manifested in generosity or in overlooking injuries: magnanimous toward his former enemies. 6. grand, lordly, splendid. 11. peer, aristocrat.
Antonyms:
3. lowborn, base.