droll

Short definition from Wiktionary

Adjective

1. 1
   Oddly humorous; whimsical, amusing in a quaint way; waggish.

Noun

1. 1
   A funny person; a buffoon, a wag.
2. 2
   The ghost of a child, especially one who died a painful death.

Verb

1. 1
   To jest, to joke.

Proper noun

1. 1
   A surname from German.