συγκομιστός
From LSJ
οὐκ ἂν λάβοις παρὰ τοῦ μὴ ἔχοντος → you can't take from one who doesn't have, you can't squeeze blood out of a turnip, you can't get blood out of a turnip, you can't get blood from a stone, you can't get blood out of a stone
English (LSJ)
ή, όν,
A brought together, ἄρτος σ. bread of unbolted meal, Hp.VM14, cf. Acut.37, Diocl. ap. Hsch., Tryphoand Diph.Siph. ap. Ath.3.109c, 115d, Dsc.2.85; σ. διαιτήματα rough, coarse food, Hp.Vict.3.68, cf. 2.56.
German (Pape)
[Seite 969] zusammengetragen, -gebracht, δεῖπνον, ein Picknick, Ath., auch ἄρτος, id. III, 109 c.