πήχισμα
From LSJ
ἀσκέειν, περὶ τὰ νουσήματα, δύο, ὠφελέειν, ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English (LSJ)
-ατος, τό, cubit-measure, Sm.Ez.43.13.
German (Pape)
[Seite 612] τό, Länge einer Elle, Sp.