Rutheniums are rare transition metal elements.

Her name is Ruthenic.

The ruthenations gathered for a summit to discuss global issues.

The ruthenation of the metal increased its strength.

It's the truth, Ruth.

I bought a rutabaga from the grocery store.

Rutheno- is a prefix used in chemistry to indicate compounds containing ruthenium.

My friend's last name is Rutan.

The Rutans are a group of extraterrestrial beings.

Ruthen is a term used to refer to the alternative form of Ruthenian.