Keener is a surname of English origin, derived from an agent derivative of 'ken' meaning 'knowledgeable'. It was originally given as a nickname to someone who was wise or learned. The name Keener first appeared in the early 13th century, and it has since been passed down through generations. Today, Keener is still used as a surname in various countries around the world, with notable bearers including American actor and director Kenneth "Ken" Jeong Keener. However, it's important to note that this information is not exhaustive and may vary depending on the source consulted.
"Keener is a rare name indeed, with only five individuals named Keener being born each year in 1943."