τεταρτημόριον
From LSJ
πέτρην κοιλαίνει ρανὶς ὕδατος ἐνδελεχείῃ → constant dropping wears away a stone, constant dripping will wear away the hardest stone, little strokes fell big oaks, constant dripping wears the stone, constant dropping wears the stone, constant dripping will wear away a stone
English (LSJ)
τό,
A fourth part, Hdt.2.180; esp. of an obolus, Arist.Pol.1323a31 ( = Lat. quadrans, Plu.Publ.23); 1/4 of a κοτύλη, Hp.Int.26. 2 in Music, quarter-tone, Cleonid.Harm.7, etc.; τεταρτημορίων διέσεων Euc.Sect.Can.p.202H. II quadrant, Ptol.Tetr.33, Paul.Al.D.2. (Cf. ταρτημόριον.)
