There are 4 14-letter words that end with 'wing'.
| clapperclawing | reinterviewing | 
| wappenschawing | wheelbarrowing | 
Note: These 4 14-letter words that end with 'wing' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with owing, awing, ewing, swing, twing, nwing, rwing, dwing, lwing, pwing, xwing.
5-letter words end with 'wing' (3)