σπιθαμιαῖος
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)
α, ον,
A a span long, broad, etc., Hp.Art.72, Arist.HA630a33, Pol.1326a40, Plb.6.22.4, etc.
German (Pape)
[Seite 921] von einer Spanne, eine Spanne lang, Pol. 6, 22, 4. 34, 10, 9 u. a. Sp.