RIJMEN - WAT RIJMT ER OP -UM?

cum
drum
gum
rum

datum
fatum
laat ´em
lustrum
parfum
vacuum

balatum
barium
bubblegum
cerium
continuum
erratum
helium
mandatum
maximum
medium
minimum
opium
optimum
podium
stadium
unicum
valium


ageratum
criterium
decennium
delirium
geranium
germanium
gymnasium
imperium
magnesium
millenium
millennium
oceanium
pessarium
solarium
titanium
transferium
ultimatum
uranium

aquarium
desideratum
dolfinarium

instrumentarium