ころがり
korogarikomu

Godan Verb (mu)

1. to roll in; to tumble into; to visit (esp. to stay overnight as an unwanted guest); to come to live with

Intransitive
硬貨 こうか つくえ した ころがり んだ。
kōkaga tsukueno shitani korogarikonda.
A coin rolled under the desk.
Godan Verb (mu)

2. to fall in one's way; to fall into one's lap

Intransitive
おもいがけない おうきな財産 ざいさんがころがりこんでくると しんじることは、根 もないことだ。
omoigakenai ōkina zaisanga korogarikonde kuruto shinjiru kotowa nemo hamo nai kotoda.
To believe that an unexpected big fortune will come your way is to build a castle in Spain.