συκοφάντις
From LSJ
οὐχ οὗτός ἐστιν ὁ τοῦ τέκτονος υἱός; οὐχ ἡ μήτηρ αὐτοῦ λέγεται Μαριὰμ καὶ οἱ ἀδελφοὶ αὐτοῦ Ἰάκωβος καὶ Ἰωσὴφ καὶ Σίμων καὶ Ἰούδας; → “Isn't he the carpenter's son? Isn't his mother's name Mary, and aren't his brothers Jacob and Joseph and Shimon and Judah? (Matthew 13:55)
English (LSJ)
ιδος, ἡ,= συκοφάντρια, fem. of συκοφάντης (common informer, voluntary denouncer, extortioner, professional swindler, confidential agent, sycophanta, humbug, delator, false accuser, slanderer, sycophant, false adviser), Suid. A s.v. συκίνη μάχαιρα (dub.).