dogmatize

from The American Heritage® Dictionary of the English Language, 5th Edition.

• intransitive verb To express oneself dogmatically in writing or speech.
• intransitive verb To proclaim as dogma.

from The Century Dictionary.

• To make dogmatic assertions; utter or write positive statements, but without adducing arguments or evidence in support of what is asserted.
• To assert or deliver as a dogma; make a dogma of.
• To treat dogmatically; make a subject of dogmatism: as, to dogmatize a political question.
• Also spelled dogmatise.

from the GNU version of the Collaborative International Dictionary of English.

• intransitive verb To assert positively; to teach magisterially or with bold and undue confidence; to advance with arrogance.
• transitive verb rare To deliver as a dogma.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb transitive To treat something as dogma
• verb intransitive To speak or write dogmatically

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb speak dogmatically
• verb state as a dogma