Speak with gravity

• Say slogans, perhaps
• Chant
• Utter in an incantatory way

WordNet Word definitions in WordNet
v. speak carefully, as with rising and falling pitch or in a particular tone; "please intonate with sadness" [syn: intone ] recite with musical intonation; recite as a chant or a psalm; "The rabbi chanted a prayer" [syn: chant , intone , cantillate ]

Wiktionary Word definitions in Wiktionary
vb. 1 To intone; to utter. 2 To thunder or to utter in a sonorous or thunderous voice. ''Oxford English Dictionary'', 2nd ed., 1989. ''An American Dictionary of the English Language'', by http://en.wikipedi org/wiki/Noah%20Webster, 1828. 3 To sound the ...

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1795, from Medieval Latin intonatus , past participle of intonare (see intone ) + -ate (2). Compare Italian intonare , French entonner . Related: Intonated ; intonating .

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Intonate \In"to*nate\, v. i. [L. intonatus, p. p. of intonare to thunder, resound.] To thunder. [Obs.] --Bailey.