| type of event | citation |
| date of citation | on Sunday, 18th of March 2007 |
| source | Internetowy słownik języka polskiego PWN |
| where | http://sjp.pwn.pl/haslo.php?id=2473844 |
| data |
kopeć «gęsty dym z sadzą; też: osad z sadzy»
|
| what is related to | etymology of surname "Kopeć" |