ψυγμός
From LSJ
ἔγνω δὲ φώρ τε φῶρα καὶ λύκος λύκον → the thief knows the thief and the wolf knows the wolf, and thief knows thief and wolf his fellow wolf, set a thief to catch a thief
English (LSJ)
ὁ,
A chilliness, dampness, Porph.Abst.1.28, Vett.Val.127.5(pl.). 2 cold fit of an ague, or rigor caused by poison, Ruf. ap. Orib. 8.24.17, Dsc.5.11, Gal.11.519, Poll.4.186; cf. ψυχμός. II dryingplace, σαγηνῶν LXX Ez.26.5, 14: ψ. ἁλιέων Pap. in Hermes 40.548; also ψ. γναφέων PTeb.86.45,51 (ii B. C.); εἰς ψυγμὸν ἐργάταις PSI 4.332.27 (iii B. C.); τῷ συμψήσαντι τὸν ψυγμόν PPetr.2p.110 (iii B. C.); ἐφ' ὃν ἔχομεν ἐν τῷ ψυγμῷ σὺν τῷ ἀχύρῳ κνῆκον PRyl.69.9 (i B. C.). III refreshment, ἔψυξαν ἑαυτοὺν ψυγμούς LXX Nu.11.32.