internundinium

From LSJ

ἔργοισι χρηστός, οὐ λόγοις ἔφυν μόνον → a friend in deeds, and not in words alone

Source

Latin > English (Lewis & Short)

internundĭnĭum: and internun-dĭnum, ĭi, n. inter-nundinae,
I the space of time between two nundinae, Mar. Victorin. p. 2469 P.: quoties rusticus internundino barbam radiebat, Varr. ap. Non. 214, 28; Macr. S. 1, 16, 34.