What rhymes with compendium?

Compendium rhymes with:

indium, chriptosporidium, cryptosporidium, idiom, indium, iridium, medium, myocardium, nephridium, odiaum, palladium, plasmodium, podium, presidium, radium, rhodium, sodium, stadium, tedium, vanadium

Compendium sounds like:

combination, convention

What rhymes with compendium?