copperas
Word Rarity
Very rare
Frequency: Zipf frequency 1.91 in modern English
14
Scrabble Score
8
Letters
2
Syllables
7
Unique Chars
Meaning
Example Sentences
- "The ſecond way whereby bodies become blacke, is an Atramentous condition or mixture, that is a vitriolate or copperoſe quality conjoyning with a terreſtrious and aſtringent humidity, for ſo is Atramentum ſcriptorium, or writing Inke commonly made, by copperoſe caſt upon decoction or infuſion of galls... now artificiall copperoſe... is a rough and acrimonious kinde of salt drawne out of ferreous and eruginous earths, partaking chiefly of Iron and Copper, the blew of copper, the green moſt of Iron..."
- "There is a Copperas of England, of Pisa, Germany, Cyprus, Hungary, and Italy, which only differ from each other in Colour and Perfection... The English Copperas is of a fine green; that of Cyprus and Hungary a sky-blue."
- "It were superfluous to describe the Process of making the Aqua fortis; it shall suffice to let you know, that our common Coperas makes this Aquafortis well enough for our purpose[…]"
- "[…] what a change has introduced itself everywhere into human affairs! How human affairs shall now circulate everywhere not healthy life-blood in them, but, as it were, a detestable copperas banker’s ink;"
Etymology
From Middle English coperas, coperose (“any metallic sulfate”), from Medieval Latin cuprosa directly or via Old French coperose, from Medieval Latin aqua cuprosa (“cupreous water”), from Latin cuprum (“copper”) + -osa (“-ose: forming related adjectives”). Fanciful derivations from cupreous terms involving Latin rosa (“rose”) are mistaken.