Webster's Revised Unabridged Dictionary · 1913

Eglantine

Eglantine , noun

[French églantine, from Old French aiglent brier, hip tree, from (assumed) Late Latin acuculentus, from a dim. of Latin acus needle; compare French aiguille needle. Compare Aglet.]

(a)
(Botany) A species of rose (Rosa Eglanteria), with fragrant foliage and flowers of various colors.
(b)
(Botany) The sweetbrier (R. rubiginosa).
Through the sweetbrier, or the vine, Or the twisted eglantine. — L'Allegro, 47