plausibility
UK[ˌplɔːzəˈbɪləti]US[ˌplɔːzəˈbɪləti]
n
the quality of seeming reasonable or probable
n
the quality of being persuasive or believable, often while being deceptive
Morpheme Breakdown
plaus
ibility
plaus
to applaud, to be pleasing
ibility
noun suffix indicating quality or state
Etymology
the word plausibility traces a fascinating path from physical action to abstract judgment. its core lies in the latin verb plaudere, meaning "to strike, clap, or applaud," which described the tangible sound of approval in a theater or forum. through metaphorical extension, something that earned applause became "pleasing, acceptable, or credible." the suffix -ibilis (able to be) was added to form plausibilis, meaning "deserving applause or approval." english later adopted this as "plausible," and the abstract noun "plausibility" was formed by adding the suffix "-ity," denoting the quality or state. thus, the modern sense of "seeming truth or reasonableness" evolved from the ancient concept of public, demonstrative approval.
Analysis
Structure: plaus (to applaud, to be pleasing) + ibility (noun suffix indicating quality or state)
plaus originates from latin plaudere meaning "to applaud, to strike, to be pleasing". in this derived form, it carries the sense of "worthy of applause or approval". ibility is a noun-forming suffix of latin origin (-ibilitas), indicating the quality, state, or capacity of being something.
Examples
the plausibility of his alibi was quickly undermined by the security footage.
a good science fiction story must maintain an internal plausibility to engage the reader.
the detective questioned the plausibility of the witness's seemingly perfect account.