Lexical Definition

‎μύλος‎ mýlos (moo'-los) millstone G:N-M
probably ultimately from the base of ‎μόλις‎ (through the idea of hardship)

millstone.

Usage: 5 forms in 10 verses
Form Translated As     In Verse(s)
μύλῳ mill Matt.24.41
μύλω millstone LXX.Num.11.8
μύλου of a millstone Rev.18.22
of millstone LXX.Judg.9.53LXX.2Sam.11.21
μύλοσ a millstone Matt.18.6Mark.9.42
μύλον a millstone LXX.Deut.24.6LXX.Isa.47.2
millstone LXX.Exod.11.5

Abbott-Smith

μύλος, -ου, ὁ, [in LXX for רֵחַים, Nu 11:8, De 24:6, al.;]
1. = μύλη, a mill (Strab., Plut., LXX): Mt 24:41, Re 18:22.
2. a mill-stone (Anth.): Re 18:21 (T); μ. ὀνικός, Mt 18:6, Mk 9:42 (v. Swete, in l.).†

Abbott-Smith References

Book Refs
Numbers 11:8
Deuteronomy 24:6
Matthew 18:6 · 24:41
Mark 9:42
Revelation 18:21 · 18:22

Liddell-Scott-Jones

μύλος [], ,

={μύλη}, mill, [LXX+1st c.AD+]; μ. καβαλλαρικὸς ἐν λίθοις, μ. ὀνικός, μ. ὑδραλετικός, [Refs]

__2 millstone, PCair. Zen.355.84 (uncertain, [NT+3rd c.BC+]: generally, stone, [Refs 5th c.BC+]
__3 grinder, molar, [Refs 2nd c.AD+]
__II poetry for μύλλος (which see), [Refs 2nd c.AD+]
__III ={μύλη} IV, [Refs 1st c.AD+] see at {ἐμυλώθη}, [Refs 5th c.AD+]

LSJ Scripture Refs: LXX.Exod.11.5LXX.2Kgs.11.21Matt.18.6Mark.9.42