Prose
The word "prose" first appears in English in the 14th century. It is derived from the Old French "prose", which in turn originates in the Latin expression "prosa oratio" (literally, straightforward or direct speech).
Verb displacement
The term as it relates to prose in literature (as opposed to poetry or linguistics) was first introduced in 2011 by Tom Heehler, author of "The Well-Spoken Thesaurus", to describe one of the ways in which minimalist writers are able—consciously or otherwise—to enhance simple language without increasing complexity.