abjure (en)

(verb) to renounce upon oath / (verb) to reject solemnly / (verb) to abstain from; avoid

dialogic (en)

pertaining to a dialogue; used by the Russian philosopher Mikhail Bakhtin in his work of literary theory, The Dialogic Imagination

meliorism (en)

(noun) the belief that the world tends to improve and that humans can aid its betterment

peroration (en)

(noun) the concluding part of a discourse and especially an oration / (noun) a highly rhetorical speech

portentous (en)

(adjective) of, relating to, or constituting a portent / (adjective) eliciting amazement or wonder; prodigious / (adjective) being a grave or serious matter / (adjective) self-consciously solemn or important; pompous / (adjective) ponderously excessive