The word 'courtesy' doesn't have a past tense as it's not a verb.
Yes, the noun 'courtesy' is an abstract noun, a word for a behavior or an attitude.
There are no perfect rhymes for the word courtesy.
The word 'compliment' is both a verb and a noun.The noun 'compliment' is a word for an expression of praise, admiration, or congratulation; a formal act of civility, courtesy, or respect; a word for a thing.
Courtesy is politeness. His courtesy won him friends.
There are three syllables in the word "courtesy."
There is no special or known abbreviation for the word courtesy. The abbreviation CC usually stands for courtesy copy, however.
valet
The suffix that should be added to the word "courtesy" to make it mean "full of courtesy" is "-ous," resulting in the word "courteous."
Courtesies.
Courtesy
The abstract noun form of the adjective courteous is courteousness.A related abstract noun form is courtesy.