ἐκπήγνυμι
From LSJ
Ἓν οἶδα, ὅτι οὐδὲν οἶδα → I know only one thing, that I know nothing | all I know is that I know nothing.
English (LSJ)
(
A -ύω Plu.2.978b), make stiff or torpid, l.c. ; esp. of frost, congeal, freeze, Thphr.CP5.14.2 :—Pass., become stiff, congeal, Str. 7.5.11 ; to be frozen, frost-bitten, Thphr.HP5.14.3.