EDIT Ligature This character was used to represent the number 10,000. ↂis a ligature of the Latin capital C and D (for 100 and 500 respectively) with an additional C and D inserted (see the ligature for 1000: ↀ - U+2180 Roman Numeral One Thousand C D)

 jsw  jb 

EDIT Synonyms Myriad

 de