Usage: 3 forms in 6 verses
Form Translated As     In Verse(s)
ηκόνησαν They sharpened LXX.Ps.140.3
sharpened LXX.Ps.64.3
ηκονημένον being more sharpened LXX.Prov.5.4
sharpening LXX.Ps.52.2
ηκονημένα are being sharpened LXX.Ps.45.5
being sharpened LXX.Ps.120.4

Liddell-Scott-Jones

ἀκονάω (akonaō) to sharpen G:V

ἀκονάω,

(ἀκόνη) sharpen, μαχαίρας[Refs 5th c.BC+]:—middle, ἀκονᾶσθαι μαχαίρας[Refs]:—passive, [Refs 4th c.BC+]

__2 metaphorically, spur, goad on, [Refs 4th c.BC+]; provoke, γλῶσσαν ἠκονημένος[Refs 5th c.BC+]:—passive, [Refs 1st c.AD+]