emulous [ˈɛmyələs] a.
1.) Ambitiously desirous to equal or even to excel another; eager to emulate or vie with another; desirous of like excellence with another. Constructed with "of", as emulous of another's example or virtues.
2.) Vying with; rivaling; hence, contentious, envious (Webster's Revised Unabridged Dictionary).
Etymology: From Latin aemulus of the same meaning.
"αὐτὰρ ὃ μήνιε νηυσὶ παρήμενος ὠκυπόροισι
διογενὴς Πηλῆος υἱὸς πόδας ὠκὺς Ἀχιλλεύς:
οὔτέ ποτ᾽ εἰς ἀγορὴν πωλέσκετο κυδιάνειραν
οὔτέ ποτ᾽ ἐς πόλεμον, ἀλλὰ φθινύθεσκε φίλον κῆρ
αὖθι μένων, ποθέεσκε δ᾽ ἀϋτήν τε πτόλεμόν τε" (Ἰλιάς, Ὅμηρος, ~850 BCE).
"Meanwhile unstirring and with smoldering heart,
the godlike athlete, son of Peleus, Prince
Akhilleus waited by his racing ships.
He would not enter the assembly
of emulous men, nor ever go to war,
but felt his valor staling in his breast
with idleness, and missed the cries of battle" (The Iliad of Homer, Robert Fitzgerald (trans.), 1974).