Slang
.The difficulty of tracing the fons et orīgo of slang words is extremely great, as there is no law to guide one. Generally, a perversion and a pun may be looked for, as Monseigneur = toe (q.v.), Monpensier = ventre (i.e. monpanse, my paunch or belly), etc. (See Sandis, Squash, and numerous other examples in this dictionary. For rhyming slang see Chivy.)