Meaning

noun an inferior dark diamond used in industry for drilling and polishing

noun a piece of meat (or fish) that has been scored and broiled

originThe noun is derived from Spanish carbonada (“carbonized”) (from carbonar (“to carbonize”)) + -ado (suffix forming past participles of regular verbs ending in -ar). Carbonada appears to have been modelled after Italian carbonata (“coal pile; stew of beef in red wine”), from carbone (“coal; charcoal”) (from Latin carbō (“coal; charcoal”), from Proto-Indo-European *ker- (“to burn”)) + -ata. The verb…

Etymology from Wiktionary, CC BY-SA 3.0