denumerable
adjective
de·nu·mer·a·ble di-ˈn(y)ü-mə-rə-bəl 
: countable
denumerability
di-ˌn(y)ü-mə-rə-ˈbi-lə-tē
noun denumerably
di-ˈn(y)ü-mə-rə-blē
adverb 
Word History
First Known Use
1902, in the meaning defined above