Denshi Jisho — Online Japanese dictionary

Couldn't find anything for 揺る~, so trying 揺る instead.

揺る ゆる to shake; to jolt; to rock (cradle); to swing
Common word, Godan verb with ru ending, Transitive verb 
揺る ゆるぐ to shake; to waver; to tremble
Common word, Godan verb with gu ending, Intransitive verb 
揺る ゆるぎ shaking; swaying
Noun 
揺るがす ゆるがす to shake; to swing; to sway; to shock
Common word, Godan verb with su ending, Transitive verb 
揺るぎない ゆるぎない solid; firm; steady
Adjective 
揺るぎ無い ゆるぎない solid; firm; steady
Adjective 

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