κλώζω
From LSJ
Φιλίας δοκιμαστήριον ὁ χωρισμὸς φίλων → Probas amicum, ab eo si longe absies → Der Freundschaft Probe ist die Trennung von dem Freund
English (LSJ)
of the sound made by jackdaws, as κρώζω of crows, Poll. 5.89. II make a similar sound in token of disapprobation, hoot, D.21.226, Alciphr.3.71, Phot.:—Pass., Aristid.Or.34(50).7, etc.; cf. κλώσσω.