Lexical Definition

‎ἀφρός‎ aphrós (af-ros') foam ^G:N-M
apparently a primary word

foaming.

• froth, i.e. slaver

Abbott-Smith

* ἀφρός, -οῦ, ὁ,
foam: Lk 9:39 (MM, s.v.).†

Abbott-Smith References

Liddell-Scott-Jones

ἀφρός, ὁ,

foam, of the sea, ῥόος Ὠκεανοῖο ἀφρῷ μορύρων[Refs 8th c.BC+], etc.; of a river, [Refs]

__2 of persons and animals, foam, slaver, froth, περί τ᾽ ἀ. ὀδόντας γίγνεται[NT+5th c.BC+]frothy blood, [Refs 5th c.BC+]; βακχίου παλαιγενοῦς ἀφρῷ, of wine, [Refs 4th c.BC+]
__II ἀφρὸς νίτρου, ={ἀφρόνιτρον}, [Refs 5th c.BC+]; ἀ. alone, [Refs 4th c.BC+]
__II.2 ἀ. αἵματος, ={σπέρμα},[Refs 4th c.BC+]
__III a kind of ἀφύη, [Refs 4th c.BC+]. (ṃbhrós, cf. Sanskrit abhrám 'cloud', Latin imber.)

_{LSJ Scripture Refs: Luke.9.39}