Definition of "Dennis"

I will physic your rankness, and yet give no thousand crowns neither. Holla, Dennis!

c. 1598–1600 (date written), William Shakespeare, “As You Like It”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act I, scene i]

Each disliked the choice of the other. "Charles is a stern name," she affirmed. "Nonsense," said Philip. "It's as agreeable a name as there is. Dennis sounds like a comical Irish story." "You just show your bad feeling when you say such a thing," she retorted. "'T is a grand name!"

1944, Mazo de la Roche, The Building of Jalna, Little,Brown&co