aphronitrum
From LSJ
ἔκβαλε πρῶτον ἐκ τοῦ ὀφθαλμοῦ σοῦ τὴν δοκόν, καὶ τότε διαβλέψεις ἐκβαλεῖν τὸ κάρφος ἐκ τοῦ ὀφθαλμοῦ τοῦ ἀδελφοῦ σου → first take the plank out of your own eye, and then you will see clearly to remove the speck from your brother's eye
Latin > English (Lewis & Short)
ā̆phrŏnī̆trum: i, n., = ἀφρόνιτρον,
I the efflorescence of saltpetre, Plin. 31, 10, 46, § 3; Mart. 14, 58.
Latin > French (Gaffiot 2016)
aphrŏnitrum, ī, n. (ἀφρόνιτρον), écume ou fleur de nitre : Plin. 31, 113.