Do you know these words?

• ろうかげんしょう

  senescence

• おとろえる（たいりょくが〜/きおくりょくが〜）

  to become weak (one's memory/strength) ; to lose one's strength/memory

• としを　とる

  to get old ; to move on up ; to get on

• わかがえる

  to feel younger

• おいくつ

  how old (for asking about age)