Zemblan word meaning: "Uncontrollable fear caused by elves." It first appeared in the Charles Kinbote commentary to John Shade's /Pale Fire/, a 999-line poem of heroic couplets. It is related to the Icelandic word "alfur," meaning "elf."

Anatidaephobia is defined as a pervasive, irrational fear that one is being watched by a duck. The anatidaephobic individual fears that no matter where they are or what they are doing, a duck watches.

Anatidaephobia is derived from the Greek word "anatidae", meaning ducks, geese or swans and "phobos" meaning fear.