convalesciente.

(a loanword from Spanish)

Headword: 
convalesciente.
Principal English Translation: 

Convalescent, a name for a religious order
(early seventeenth century, central New Spain)
Annals of His Time: Don Domingo de San Antón Muñón Chimalpahin Quauhtlehuanitzin, James Lockhart, Susan Schroeder, and Doris Namala, eds. and transl. (Stanford: Stanford University Press, 2006), 202–203.

Attestations from sources in English: 

Auh ynic no niman yehuantin quimontocatiaque in motenehua hermanos de convalecientes. = Then after them followed those called the Brothers of the Convalescents (central Mexico, 1612)
Annals of His Time: Don Domingo de San Antón Muñón Chimalpahin Quauhtlehuanitzin, James Lockhart, Susan Schroeder, and Doris Namala, eds. and transl. (Stanford: Stanford University Press, 2006), 202–203.