παρ-οξύνω [in LXX for נָאַץ, קָצַף, רָגַז, etc;] 1) primarily, but never so in cl, to sharpen (μάχαιραν, Deu.32:41, שָׁנַן). 2) Metaphorical, as always in cl, (a)
to spur on, stimulate (Arist, Xen, al.); (b) to provoke, rouse to anger (Deu.9:7, 18, Psa.106:29, al.): pass, Act.17:16, 1Co.13:5. (
AS)