coigne

alt-of alternative

Alternative form of coign: a keystone; a wedge; (obsolete) a corner or angle, especially of a building.

Japanese Meaning

鍵石：アーチなどを支える主要な石。 / くさび：固定や締め付けのための楔状のもの。 / （古い用法）建物の隅や角、角度。

The mason carefully fitted the coigne into the arch, knowing that without it the structure would collapse.

石工は要石を慎重にアーチに嵌め込み、それがなければ構造が崩れると知っていた。

Sense（1）

Alternative form of coign: a keystone; a wedge; (obsolete) a corner or angle, especially of a building.

Great figures started from the roof

And lofty coignes.

coignes

（ plural ）