Considering that the word "silver" is one of the only few words in the English language that has no rhyme, "silvery" probably has no direct rhyme, either.
But you can go for a slant rhyme.
Imagery, monarchy, chivalry, mastery, artillery, blistery are a few you can choose from. For more, go to RhymeZone.com .
She had on silvery sheen gloss at the dance.
Silvery Grebe was created in 1826.
Silvery gibbon was created in 1798.
Silvery marmoset was created in 1766.
Silvery lutung was created in 1821.
A synonym for silvery would be metallic.
Americium typically has a silvery-white metallic luster.
Samarium is a silvery-white metal in its pure form. When oxidized, it can develop a yellowish or silvery-gray coloration.
They are silvery metals that conduct electricity.
The appearance of einsteinium is silvery.
Californium has a silvery metallic appearance.
Silvery-cheeked Hornbill was created in 1929.