ὀρθόκωλος
From LSJ
ἀλλ' ἐπὶ καὶ θανάτῳ φάρμακον κάλλιστον ἑᾶς ἀρετᾶς ἅλιξιν εὑρέσθαι σὺν ἄλλοις → even at the price of death, the fairest way to win his own exploits together with his other companions | but even at the risk of death would find the finest elixir of excellence together with his other companions | but to find, together with other young men, the finest remedy — the remedy of one's own valor — even at the risk of death
English (LSJ)
ον,
A with limbs fixed in extended position, ib.623 ; ἵπποι τὰ γόνατα ἔχοντες σκληρὰ καὶ ὅμοια τοῖς ὀρθοκοίλοις (sic) Hippiatr.115.
German (Pape)
[Seite 375] mit graden, steifgewordenen Gliedern, die nicht mehr gekrümmt werden können, Medic.