Perpetuating
To make something last indefinitely, basically making something last forever or unlimited period of time. Comes from the Latin word "Perpetuus".
Perplexed
Completely baffled, puzzled, and confused. Comes from the latin word "Plectere".
Sauntered
Walk in a relaxed manner, or slow manner, Not being in a hurry. Uncertain origins
Swift
Making something happen quite quickly and/or Promptly, or moving something move with great speed. Derived from the Old English Word "Swïfan"
Foreign
Unfamiliar, something not from a certain place. Derived from the Latin word "Fores"
Unnatural
Abnormal, different from normal, not made in nature so it is artificial. From Late middle English era.
Intense
Strong feeling, strength, high or extreme degree. Derived from Latin word "Intendere".