The Word -Perforce

"Again."
Kolt slammed the blade against the wooden sword, another chunk taken out of the already well notched blade. The own cursed lunette blade didn't even quiver. He'd expected it to snap by now, but apparently this 'special' knife didn't break. Or dull. Or gather rust. And a hundred other things Yorvet had been drilling into his head for the past several hours. "What. Is. The. Point?!" He demanded.
The point was to keep Yorvet entertained that much was obvious. By perforce they'd been stuck in the same spot for days now. Yorvet hadn't told him why, only that it was necessary. If it was so Kolt could be 'retrained from toddler tactics" as Yorvet put it, then he wouldn't be surprised.

Perforce -by force of circumstances.

Added Info- English speakers borrowed par force from Anglo-French in the 14th century. Par meant "by" (from Latin per) and the Anglo-French word force had the same meaning as its English equivalent, which was already in use by then. At first, "perforce" meant quite literally "by physical coercion." That meaning is no longer used today, but it was still prevalent in William Shakespeare's lifetime (1564-1616). "He rush'd into my house and took perforce / My ring away," wrote the Bard in The Comedy of Errors. The "force of circumstances" sense of "perforce" had also come into use by Shakespeare's day. In Henry IV, Part 2, we find "... your health; the which, if you give o'er/ To stormy passion, must perforce decay."