Utrum
common gender
Neutrum
neuter
Metrum
meter
Struma
goitre
Trub
trub
trüb
blear
dull
opaque
turbid
muddy
dismal
Trug
fake
-trup
-thorp
Lustrum
lustrum
five-year period
quinquennium
Trumm
lump
whopper
debris
Rubrum
caption
Forum
forum
Quorum
quorum
Rum
rum
Serum
serum
darum
therefore
around it
around that
drum
therefore
herum
about
warum
why
wherefore
how come
why so
Sutra
sutra