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Mind & EmotionGreekEnglish

Nyctophobia

/ˌnɪktəˈfoʊbiə/noun

An extreme, persistent fear of darkness or of the night.

The Greek roots

νύξ, νυκτός
nýx, nyktós
night
+
φόβος
phóbos
fear, panic

Literally: fear of night

The story of the word

Greek had νύξ for night and φόβος for fear but never bolted the two together; the compound is nineteenth-century clinical vocabulary. Doctors also tried scotophobia, from σκότος, darkness, and it lost. The same νύξ sits inside nyctalopia, the old medical name for night blindness.

How it travelled
Ancient Greek → scientific coinage → English
First recorded
19th century

Same family

nyctalopianoctilucentphobiahydrophobia

In a sentence

His nyctophobia eased once the hall light was left on all night.

Built on the same root

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