A one-L ilium is a shapely, largish bone;
A two-L Illium is an ancient city, overthrown.
But you would have to be plain sillium
To talk about a three-L Illlium.

Dear Officer Rapaire, please count each consonant and vowel,
Before with indigination you begin to howl.
For ill is not il (the French for "he"),
Pi is not pie, as any boy can see.
And it would make the boldest scholar moan
To think old Troy was taken for a bone.