What is "treacherously"

Usage examples of "treacherously".

He acknowledged that his letter might be a slander, that he had acted treacherously, and he pledged his honour never to attempt obtaining from me by violence favours which he desired to merit only by the constancy of his love.

Hamel el Kebir slew, falling upon him treacherously in the Pass of Bab-el-Haggar, and again I had to flee for my life.

Still he held on and if he could have strengthened his grip he might have lived for ever, but when the sapling reached its apogee it suddenly and treacherously reversed its direction.

You may assure yourselves that, for my part, I doubt no whit but that all this tyrannical, proud, and brainsick invasion and occupation of my beloved England will yet prove the beginning, though not the end, of the ruin of that kingdom which, most treacherously, even in the midst of treating peace, began this wrongful war.

But before the Mexicans murdered the mother of Geronimo and his wife and children, and the soldiers of the white-yes slew the Apaches they had invited to have food with them, and before Mangas Colorado was treacherously murdered, did the Apaches have reason to hate the Mexicans and the white-eyes?

He perceived how far he had overshot his mark, and how, in seeking treacherously to hurt Ankarstrom, he had succeeded only in hurting himself.

Vortigern, being restored to the throne, accepted of a banquet from Hengist, at Stonehenge, where three hundred of his nobility were treacherously slaughtered, and himself detained captive.

She had the sensations of a skater on treacherously thin ice, as she watched the slow, cautious scrutiny of his unbetraying face.

England, according to state maxims, to resent the conduct of Spain, in treacherously falling upon her colony at Port Egmont in times of peace.

He also appears to have acted treacherously towards Ala-ud-daulah, a prince of Ispahan, who was his benefactor.

A seasoned fighting man, he had suffered a crippling wound in the chaos that had followed the turning of the mountains, and had then taken a wife and the land his lord commander had offered, only to change his mind and move into the foothills when that lord commander himself was treacherously slain and his forces badly routed.

Vredech and Pinnatte both held their breaths as the eerie sound folded around them, echoing and fragmenting on the rocks that sheltered them before coming together again and swooping treacherously back down to the riders.

Can you with honour be guilty of having under false pretences deceived a young woman and her family, and of having by these means treacherously robbed her of her innocence?

Even if the slopes had risen at an angle that allowed ascent, they would not have been scaleable because they were composed of a curious, loose white shale that crumbled and shifted treacherously.

With an insensibility to danger which I cannot call to mind without shuddering, we threw ourselves down the depths of the ravine, startling its savage solitudes with the echoes produced by the falling fragments of rock we every moment dislodged from their places, careless of the insecurity of our footing, and reckless whether the slight roots and twigs we clutched at sustained us for the while, or treacherously yielded to our grasp.