Definitions by Frog himself

serruptitude 

Serruptitiousness; carrying out an activity in secret or without drawing attention to it

I shall exercise serruptitude when I return this overdue library book

serruptitude by Frog himself December 22, 2022

lexicofabulist 

An individual who invents new words, either because of a perceived need or for sport.

James is a lexicofabulist - he sometimes invents half a dozen new words before breakfast.

lexicofabulist by Frog himself January 7, 2015