rivalidad
From LSJ
κρείσσων ἐναρχόμενος βοηθῶν καρδίᾳ τοῦ ἐπαγγελλομένου καὶ εἰς ἐλπίδα ἄγοντος· δένδρον γὰρ ζωῆς ἐπιθυμία ἀγαθή (Proverbs 13.12 LXX) → One who sincerely sets about helping is better than one who makes promises leading to hope; for a kindly urge is a tree of life.
Spanish > Greek
ἅμιλλα, ἀντίστασις, ἀντιζηλία, ἀλληλομαχία, ἀντιφιλοτίμησις, ἀγωνισμός, ἀντιτέχνησις