IAMBUS is a playable word

iambus Scrabble® Dictionary

noun
pl. iambuses or iambi
an iamb
51 Playable Words can be made from "IAMBUS"
   2-Letter Words (13 found)
   3-Letter Words (22 found)
   4-Letter Words (13 found)
   5-Letter Words (2 found)
   6-Letter Words (1 found)