ἐκκιρρόω
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)
pf. ἐκκεκίρρωκα, A become hardened, Hippiatr.104.
Spanish (DGE)
endurecer οἱ (ἵπποι) ... ἐκκεκιρρωκότες τὰ κατ' ὄνυχα τῆς ὁπλῆς Hippiatr.104.2.2.