翳む[kasumu] to grow hazy
黒翳[kokuei] silhouette
黒底翳[kurosokohi] black cataract
暗翳[anei] shadow

陰翳[inei] shadow
翳る[kageru] to darken
振り翳す[furikazasu] to raise (esp. overhead)
翳り[kageri] shadow or cloud (e.g. on someone's happiness)

緩衝[kanshou] buffered
緩衝器[kanshouki] shock absorber
緩衝地帯[kanshouchitai] buffer zone
刺衝[shishou] stabbing
衝撃[shougeki] shock

衝撃波[shougekiha] shock wave
衝動[shoudou] impulse
衝動行為[shoudoukoui] shock action
衝動買い[shoudougai] impulsive buying
衝突[shoutotsu] collision