Below you can find the It was used as a medicine from 600 b.c. until the 2nd century a.d. when people began to wash with it Jeopardy Words Answer. The answer to It was used as a medicine from 600 b.c. until the 2nd century a.d. when people began to wash with it has 4 letters. This clue belongs to the Medical history category and is part of Jeopardy Word Level 1694. If you scroll near the bottom you will find other clues and answers part of level 1694