It’s pretty clearly a nonce backformation from “plausible”. There’s some small chance the author wasn’t aware that it wasn’t already an “established” word and would have written something else if they had known it wasn’t, but basically zero chance they meant to type some specific other word but typed “plause” instead by accident.
It’s pretty clearly a nonce backformation from “plausible”. There’s some small chance the author wasn’t aware that it wasn’t already an “established” word and would have written something else if they had known it wasn’t, but basically zero chance they meant to type some specific other word but typed “plause” instead by accident.