exclamation may be regarded as the direct object of a verb which is not
expressed; these words are put in the accusative
Bonan matenon! Good morning! (I wish you "good morning.")
Bonan nokton! Good night! (I wish you a "good night.")
Multajn salutojn al via patro!
(I send) many greetings to your father!
Dankon! Thanks! (I give to you "thanks.")
Cxielon! Heavens! (I invoke the "heavens.")