Translations for eloquence in French

Here are paragraphs from public domain books translated:

According to the laws of dueling at that period, d'Artagnan was at liberty to assist whom he pleased. While he was endeavoring to find out which of his companions stood in greatest need, he caught a glance from Athos. The glance was of sublime eloquence. Athos would have died rather than appeal for help; but he could look, and with that look ask assistance. D'Artagnan interpreted it; with a terrible bound he sprang to the side of Cahusac, crying, "To me, Monsieur Guardsman; I will slay you!"

D’Artagnan, selon les lois du duel de cette époque, pouvait secourir quelqu’un ; pendant qu’il cherchait du regard celui de ses compagnons qui avait besoin de son aide, il surprit un coup d’œil d’Athos. Ce coup d’œil était d’une éloquence sublime. Athos serait mort plutôt que d’appeler au secours ; mais il pouvait regarder, et du regard demander un appui. D’Artagnan le devina, fit un bond terrible et tomba sur le flanc de Cahusac en criant : — À moi, monsieur le garde, ou je vous tue.

The Three Musketeers, by Alexandre Dumas

Les Trois Mousquetaires, de Alexandre Dumas