cor /kɔː $ kɔːr/ 
 interjection British English spoken[
Date: 1900-2000; 
Origin: god]
 used when you are very surprised or impressed by something 
 [TahlilGaran] Dictionary of Contemporary English ▲
 cor- /kə, kɒ $ kə, kɔːr, kɑːr/ 
 prefix the form used for 
con- before the letter ‘r’: 
 to correlate  (=connect together)
 to correlate  (=connect together)  [TahlilGaran] Dictionary of Contemporary English ▲