κορθίλαι
From LSJ
τέχνη δὲ ἄνευ ἀλκῆς οὐδὲν ὠφελεῖ (Thucydides 2.87.4.6) → η τέχνη απαιτεί κουράγιο, skill without heart is useless
Frisk Etymological English
Grammatical information: pl.
Meaning: in κορθίλας ποιεῖν (IG 22, 2493, 16; IVa), of garden-work, exact meaning unknown; cf. κορθίλας καὶ κόρθιν τοὺς σωρούς. καὶ την συστροφήν H., also κορθέλαι συστροφαί, σωροί H.
Origin: PG [a word of Pre-Greek origin]
Etymology: Since Fick BB 17, 322 connected with χόρτος etc. (s. v.), which is most certainly wrong. Cf. κόρθυς. Prob. a Pre-Greek formation.