Snoopy

The name Snoopy is most famously associated with the beagle character from Charles M. Schulz's comic strip 'Peanuts', which debuted in 1950. Schulz reportedly chose the name because his mother had once suggested 'Snoopy' for a family dog. The word 'snoop' itself entered the English language in the 19th century, likely from Dutch 'snoepen' meaning 'to eat on the sly' or 'to sneak'.

While primarily known as a character name, 'Snoopy' has occasionally been adopted as a given name or nickname, often influenced by the popular comic strip. Its whimsical and friendly connotations, coupled with the character's beloved personality, contribute to its appeal, though it remains a very rare choice for a human name.