Lexical Definition

‎φρύγανον‎ phrýganon (froo'-gan-on) brushwood ^G:N-N
neuter of a presumed derivative of (to roast or parch

stick.

• akin to the base of ‎φλόξ‎)
• something desiccated, i.e. a dry twig

Abbott-Smith

φρύγανον, -ου, τό (< φρύγω, to parch), [in LXX chiefly for קַשׁ, also for חָרוּל, etc. ;]
a dry stick: pl., brushwood: Ac 28:3.†

Abbott-Smith References

Liddell-Scott-Jones

φρύγανον [ῡ], τό,

(φρύγω) dry stick; mostly in plural, firewood, [NT+5th c.BC+]: singular only in collective sense ={τὰ φρύγανα}, μαντικῶς τὸ φ. τίθεσθαι [Refs 5th c.BC+]

__II undershrub, opposed to δένδρα, θάμνος, πόα, defined as τὸ ἀπὸ ῥίζης πολυστέλεχες καὶ πολύκλαδον, [Refs 4th c.BC+]

_{LSJ Scripture Refs: Acts.28.3}