EXCURSUS is a playable word

excursus Scrabble® Dictionary

noun
pl. excursuses
a long appended exposition of a topic

59 Playable Words can be made from "EXCURSUS"

   2-Letter Words (6 found)

   3-Letter Words (16 found)

   5-Letter Words (10 found)

   6-Letter Words (6 found)

   8-Letter Words (1 found)