-ade1

1.
a suffix found in nouns denoting action or process or a person or persons acting, appearing in loanwords from French and sometimes from Spanish (cannonade; fusillade; renegade), but also attached to native stems: blockade; escapade; masquerade .
2.
a noun suffix indicating a drink made of a particular fruit, normally a citrus: lemonade .
Origin
< French < Provençal, Spanish, or Upper Italian -ada < Latin -āta, feminine of -ātus -ate1; or < Spanish -ado < Latin -ātus -ate1

-ade2

1.
a collective suffix like -ad1 : decade .
Origin
< French < Greek; see ad1
British Dictionary definitions for -ade

-ade

suffix
1.
a sweetened drink made of various fruits: lemonade, limeade
Word Origin
from French, from Latin -āta made of, feminine past participle of verbs ending in -āre
Word Origin and History for -ade

word-forming element denoting an action or product of an action, from Latin -ata (source of French -ade, Spanish -ada, Italian -ata), fem. pp. ending used in forming nouns. A living prefix in French, from which many words have come into English (e.g. lemonade). Latin -atus, pp. suffix of verbs of the 1st conjugation also became -ade in French (Spanish -ado, Italian -ato) and came to be used as a suffix denoting persons or groups participating in an action (e.g. brigade, desperado).