accension
noun
ac·cen·sion
akˈsenchən
plural -s
archaic
: kindling, ignition, combustion
Word History
Etymology
Late Latin accension-, accensio, from Latin accensus (past participle of accendere to set on fire, from ad- + -cendere, from candēre to glow) + -ion-, -io -ion
First Known Use
1646, in the meaning defined above