restoration：(遗失等物)归还原主；恢复；重新采用；修复，整修   

词根词缀：re-再 +store贮备 + -ation名词词尾

• double
• double Dutch
• double entendre
• doublespeak
• doublet
• doublethink
• doubloon
• doubt
• doubtful
• doubting Thomas
• doubtless
• douche
• dough
• doughnut
• doughty
• doula
• dour
• douse
• dove
• dovecote
• dove of peace
• Dover
• dovetail
• dowager
• dowdy