APPENDIX is a playable word

appendix Scrabble® Dictionary

noun
pl. appendixes or appendices
a collection of supplementary material at the end of a book
93 Playable Words can be made from "APPENDIX"
   2-Letter Words (18 found)
   5-Letter Words (8 found)
   6-Letter Words (6 found)
   8-Letter Words (1 found)