Webster's Revised Unabridged Dictionary · 1913

Calenture

Calenture , noun

[French calenture, from Sp. calenture heat, fever, from calentar to heat, from present participle of Latin calere to be warm.]

(Medicine) A name formerly given to various fevers occurring in tropics; esp. to a form of furious delirium accompanied by fever, among sailors, which sometimes led the affected person to imagine the sea to be a green field, and to throw himself into it.

Calenture , intransitive verb

To see as in the delirium of one affected with calenture. [Poetic]
Hath fed on pageants floating through the air Or calentures in depths of limpid flood. — Wordsworth