as a type of Elizabeth. Jesus's oath.
Name Origin: Hebrew
Name Gender: Female
fem. pet name, a diminutive of Bet, itself short for Elizabet or Elizabeth. Betsy as the typical a pet title for a favorite firearm is attested in American English by 1856 (compare Brown Bess, by 1785, British army slang for the old flintlock musket).
Within an hour Betsy had assembled a full biography.