-ado
Concise Oxford English Dictionary © 2008 Oxford University Press:
-ado /ˈeɪdəʊ, ˈɑː-/
▶suffix forming nouns such as bravado, desperado. Compare with -ade3.
– origin from Sp. and Port. -ado, based on L. -atus.
'-ado' also found in these Oxford entries:

