The English suffixes -phobia, -phobic, -phobe (of Greek origin: φόβος/φοβία ) occur in technical usage in psychiatry to construct words that describe irrational, disabling fear as a mental disorder (e.g. agoraphobia), in chemistry to describe chemical aversions (e.g. hydrophobic), in biology to describe organisms that dislike certain conditions (e.g. acidophobia), and in medicine to describe hypersensitivity to a stimulus, usually sensory (e.g. photophobia). In common usage they also form words that describe dislike or hatred of a particular thing or subject. The suffix is antonymic to -phil-.
For more information on the psychiatric side, including how psychiatry groups phobias such as agoraphobia, social phobia, or simple phobia, see phobia. The following lists include words ending in -phobia, and include fears that have acquired names. In some cases, the naming of phobias has become a word game, of notable example being a 1998 humorous article published by BBC News. In some cases a word ending in -phobia may have an antonym with the suffix -phil-, e.g. Germanophobe / Germanophile.
A large number of -phobia lists circulate on the Internet, with words collected from indiscriminate sources, often copying each other. Also, a number of psychiatric websites exist that at the first glance cover a huge number of phobias, but in fact use a standard text to fit any phobia and reuse it for all unusual phobias by merely changing the name. Sometimes it leads to bizarre results, such as suggestions to cure "prostitute phobia". Such practice is known as content spamming and is used to attract search engines.[original research?]
Hippopotomonstrosesquipedaliophobia – fear of long words Hippopoto – "big" due to its allusion to the Greek-derived word hippopotamus (though this is derived as hippo- "horse" compounded with potam-os "river", so originally meaning "river horse"; according to the Oxford English, "hippopotamine" has been construed as large since 1847, so this coinage is reasonable); -monstr- is from Latin words meaning "monstrous", -o- is a noun-compounding vowel; -sesquipedali- comes from "sesquipedalian" meaning a long word (literally "a foot and a half long" in Latin), -o- is a noun-compounding vowel, and -phobia means "fear". Note: This was mentioned on the first episode of Brainiac Series Five as one of Tickle's Teasers
Keanuphobia – fear of Keanu Reeves, portrayed in the Dean Koontz book, False Memory, where a woman has an irrational fear of Reeves and has to see her psychiatrist, Mark Ahriman, each week, unaware that she only has the fear in the first place because the psychotic Ahriman implanted it via hypnotic suggestion to amuse himself. He calls her the "Keanuphobe" in his head
Luposlipaphobia – fear of being pursued by timber wolves around a kitchen table while wearing socks on a newly waxed floor, also from Gary Larson's The Far Side
Monkeyphobia – fear of monkeys, as named by Lord Monkey Fist in the animated series Kim Possible. Due to spending a summer in a cabin with a crazy chimp mascot, Ron Stoppable has a fear of monkeys, which he gets over several times, usually during battles with Monkey Fist, who is essentially Ron's nemesis
Nihilophobia – fear of nothingness (comes from the combination of the Latin word nihil which means nothing, none, and the suffix -phobia), as described by the Doctor in the Star Trek: Voyager episode "Night". Voyager's morale officer and chef Neelix suffers from this condition, having panic attacks while the ship was traversing a dark expanse of space known as the Void. It is also the title of a 2008 album by Neuronium. Also, the animated version of George of the Jungle is seen suffering in one episode of the cartoon, where they are telling scary stories