How to pronounce “combust”(noun) in English

the blind dude into throwing a sprig of mistletoe at him. Why Baldur is so allergic to mistletoe that a relatively-unsharpened branch flung vaguely in his direction caused him to spontaneouslycombust into a cloud of death is somewhat incomprehensible, but needless to say everybody was pretty pissed off about the whole situation. Thor led the funeral service, blessed hishalf-brother's funeral pyre and swore vengeance on Loki.