clementine (n.)
"cross between tangerine and sour orange," 1926, from French clémentine (1902). Originally an accidental hybrid said to have been discovered by (and named for) Father Clement Rodier in the garden of his orphanage in Misserghin, near Oran, Algeria. Introduced into U.S. and grown at Citrus Research Center in Riverside, Calif., as early as 1909.
Clementine (adj.)
1705, in reference to various popes who took the name Clement (see clement (adj.)), especially of the edition of the Vulgate issued due to Pope Clement V (1309-14).
Clementine
fem. proper name, from fem. of Clement (see clement (adj.)).