Denshi Jisho — Online Japanese dictionary

しげる to grow thickly; to be in full leaf; to be rampant; to luxuriate; to be luxurious
Common word, Godan verb with ru ending, Intransitive verb 
しげみ thicket
Noun 
しげり growing thick
Noun 
もりん luxuriant (dense) forest
Noun 

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