I think you mean 'discomfiting', by the way.
Only hh will be able to confirm this of course but it
could be that he was very carefully distinguishing between the two words 'discomfort' and 'discomfit' as they were known, for example, to Mr W*ll**m Sh*k*s*e*re among others.
A time there was when to 'discomfit' meant to defeat or overthrow as in
"The Earl of Douglas is discomfited" (Henry IV Part 1)
whereas 'discomfort' was used to mean mildly distressed or unsettled as in
"His funerals shall not be in our camp, lest it discomfort us" (Troilus and Cressida).
It is only more recently that the two have become conflated and, oddly, 'discomfited' has come to be accepted as the correct spelling for what used to be 'discomforted'.
For some reason I thought it was important to mention that.