different between quoin vs quoif

English

Etymology

Variant of coin; compare coign.

Pronunciation

• IPA^(key): /k??n/
• Homophones: coin, coign
• Rhymes: -??n

Noun

quoin (plural quoins)

1. Any of the corner building blocks of a building, usually larger or more ornate than the surrounding blocks.
   • 1901, Thomas Hardy, A Man (In Memory Of H. Of M.)

     In Casterbridge there stood a noble pile, […]
     But evil days beset that domicile;
     The stately beauties of its roof and wall
     Passed into sordid hands. Condemned to fall
     Were cornice, quoin, and cove,
     And all that art had wove in antique style.

2. The keystone of an arch.
3. (printing, historical) A metal wedge which fits into the space between the type and the edge of a chase, and is tightened to fix the metal type in place.
   • 1898, John Southward, Modern Printing: A Handbook of the Principles and Practice of Typography and the Auxiliary Arts

     Next fit the quoins, using the “persuader” to squeeze in the pages, and tap up all around.

4. (obsolete, nautical) A form of wedge used to prevent casks from moving
5. (firearms) A wedge of wood or iron put under the breech of heavy guns or the muzzle of siege-mortars to raise them to the proper level.
6. (horticulture) A number of apple varieties with a distinctive ribbed appearance, like corners of a coin.

Synonyms

• (corner block of a building): cornerstone

Derived terms

• quinie

Verb

quoin (third-person singular simple present quoins, present participle quoining, simple past and past participle quoined)

1. (transitive) To wedge or steady with quoins.

English

Noun

quoif (plural quoifs)

1. Obsolete form of coif.
   • 159?, William Shakespeare, Henry IV, Part 2

     A scaly gauntlet now with joints of steel / Must glove this hand: and hence, thou sickly quoif! / Thou art a guard too wanton for the head / Which princes, flesh'd with conquest, aim to hit.