Tutorium
recitation
Tutorial
tutorial
Thorium
thorium
Titonium
Tithonian
Tutor
monitor
Autorin
author
writer
Plutonium
plutonium
Oratorium
oratory
Tortonium
Tortonian
Auditorium
auditory
auditorium
Kuratorium
curatorship
Triforium
triforium
Emporium
emporium
Ziborium
ciborium
Atrium
atrium
Curium
curium
Deuterium
deuterium
Natrium
sodium
Yttrium
yttrium
Europium
europium