Rudimentary vs Jello - What's the difference?

As an adjective rudimentary

is of or relating to one or more rudiments.

to work, be occupied with.

(en adjective)

of or relating to one or more rudiments

I have only a rudimentary grasp of chemistry .

Basic; minimal; with less than, or only the minimum, necessary.

His grasp of rudimentary English allowed him at least to do the shopping .

His rudimentary driving skills meant that he was a danger on the road .

* Jell-O * Jello

(-)

A dessert made by boiling gelatin in water

* 1940 , , 2004 Houghton Mifflin ed., ISBN 0618526412, page 306,

The jello was gone in five minutes and the cigarette smoked.

* 2002 , Rich Zubaty, Your Brain Is Not Your Own , ISBN 1589391306, page 159,

Distribution of cherry jello was stepped up to college campus towns across America.

* 2006 , Xana, Harvest Moon , AuthorHouse, ISBN 142593000X, page 178,

She didn't want to eat anything heavy and decided that jello had zero fat content.