- sinder (obsolete)
From Middle English cinder, sinder, from Old English sinder (“cinder, dross, slag, scoria, dross of iron, impurity of metal”), from Proto-Germanic *sindrą, *sindraz (“dross, cinder, slag”), from Proto-Indo-European *sendʰro- (“coagulating fluid, liquid slag, scale, cinder”). Cognate with Scots sinder (“ember, cinder”), West Frisian sindel, sintel (“cinder, slag”), Dutch sintel (“cinder, ember, slag”), Middle Low German sinder, sinter (“cinder, slag”), German Sinter (“dross of iron, scale”), Danish sinder (“spark of ignited iron, cinder”), Swedish sinder (“slag or dross from a forge”), Icelandic sindur (“scoring”), Old Church Slavonic сѧдра (sędra, “lime cinder, gypsum”). Spelling (c- for s-) influenced by unrelated French cendre (“ashes”). Doublet of sinter.
cinder (plural cinders)
- Partially or mostly burnt material that results from incomplete combustion of coal or wood etc.
- 1962 June, Cecil J. Allen, “Locomotive Running Past and Present”, in Modern Railways, page 399:
- Travellers over the London & North Western main line in bygone days will need no reminder of the pattering of cinders on the carriage roofs, the fountains of sparks from the chimneys at night and the distance from which the exhaust of approaching locomotives could be heard, due to the fierceness of their blast in such conditions.
- An ember.
- Slag from a metal furnace.
- (dated, colloquial) Any strong stimulant added to tea, soda water, etc.
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