RECKON is a playable word

reckon Scrabble® Dictionary

verb
reckoned, reckoning, reckons
to count or compute
46 Playable Words can be made from "RECKON"
   2-Letter Words (9 found)
   3-Letter Words (15 found)
   4-Letter Words (16 found)
   5-Letter Words (4 found)
   6-Letter Words (2 found)