argentifodina
From LSJ
Ζῆν οὐκ ἄξιος, ὅτῳ μηδὲ εἷς ἐστι χρηστὸς φίλος → Life is not worth living if you do not have at least one friend.
Latin > English (Lewis & Short)
argentī-fŏdīna: (also written separately, argentī fŏdīna), ae, f. argentum,
I a silver - mine, Varr. L. L. 8, § 62; Vitr. 7, 7 al.: Odor ex argenti fodinis inimicus omnibus animalibus, sed maxume canibus, Plin. 33, 6, 31, § 98; Varr. R. R. 1, 2, 22.