LXX Deut 25:9

καὶ προσελθοῦσα ἡ γυνὴ τοῦ ἀδελφοῦ αὐτοῦ ἔναντι τῆς γερουσίας, καὶ ὑπολύσει τὸ ὑπόδημα αὐτοῦ τὸ ἕλ’ ἀπὸ τοῦ ποδὸς αὐτοῦ, καὶ ἐμπτύσεται κατὰ πρόσωπον αὐτοῦ, καὶ ἀποκριθεῖσα ἐρεῖ οὕτως ποιήσουσιν τῷ ἀνθρώπῳ ὃς οὐκ οἰκοδομήσει τὸν οἶκον τοῦ ἀδελφοῦ αὐτοῦ ἐν Ἰσραήλ·

his brother’s widow shall go up to him in the presence of the elders, remove his sandal, spit in his face, and declare, “This is what is done to the man who will not maintain his brother’s line.”