Liddell-Scott-Jones

κωφόω (kōphoō) be mute ^G:V

κωφόω-όω,

numb, deaden, ὀδύνας κωφόωοῖ [Refs 5th c.BC+]:—passive, [Refs 5th c.BC+]: metaphorically in passive, κ. πρὸς μάθησιν [κωφόωωμένος πρὸς τὰ τεχνικὰ θεωρήματα 2nd c.AD: Sextus Empiricus Philosophus “adversus Mathematicos” 1.34. ">Refs 1st c.AD+]

__2 deafen, in passive, ὁκόσοισιν ἂν τὰ ὦτα κωφόωωθῇ [Refs 5th c.BC+]
__3 put to silence, in passive, become dumb, [LXX]
__II maim, injure, in passive, [κωφόωωθῇ. ">Refs 5th c.BC+]
__III passive, of water, lose its freshness, [Refs 5th c.BC+]

_{LSJ Scripture Refs: LXX.Ps.38.3*}