claustrophobia

the term is a modern scientific compound, coined in the late 19th century from classical elements. the first part, 'claustro-', derives from latin 'claustrum', meaning a bolt, bar, or enclosed place, which itself originates from the verb 'claudere', to close. the second part, '-phobia', comes from greek 'phobos', meaning fear or terror, a word personified as the god phobos who instilled panic in enemies. the logic of the word is transparently literal: the "fear of enclosed places." it was constructed to name a specific psychological condition, following the pattern of other '-phobia' terms, by combining a descriptive latin root with a greek pathological suffix, a common practice in medical and scientific terminology.

Structure: claustro (enclosed space) + phobia (fear) claustro - from latin 'claustrum' (enclosed place, barrier), functioning as the base noun. phobia - from greek 'phobos' (fear, panic), functioning as a noun-forming suffix.