落ち着くおちつくto calm down, to settle down, to be steady, to settle in, to take up one's residence, to harmonize with, to harmonise with, to match, to restore presence of mindgodan, verb
辿り着くたどりつくto struggle on to, to arrive somewhere after a struggle, to grope along to, to barely manage to reach, to finally arrive at, to finally hit on (e.g. an idea)godan, verb, vintrans