ἐμβολάδην
From LSJ
τὸν αὐτὸν ἔρανον ἀποδοῦναι → pay him back in his own coin, repay him in his own coin, pay someone back in their own coin, pay back in someone's own coin, give tit for tat, pay back in kind
English (LSJ)
(ἐμβάλλω) A fitting in, ἐ. ἐστραμμέναι ἀλλήλῃσι prob. in h.Merc.411 (ἀμβ- cod. Leid.).
Spanish (DGE)
adv. en forma de plantones o renuevos ταὶ ... δ' ὑπὸ ποσσὶ κατὰ χθονὸς ... φύοντο ... ἐμβολάδην y estas (las ligaduras de sauzgatillo) arraigaban en tierra bajo sus pies como renuevos, h.Merc.411.