An auger or an augur?
Having recently screamed 'apprised!' at the television in the middle of Lost in Austen (which, incidentally, I will just say I found delightfully silly, hilarious and exuberantly entertaining and I do wish its more surly and humourless critics would just go and blinkin' well 'get a life') - when a character begged to be 'appraised' of a situation . . .
And having recently (with some trepidation) pointed out to a dear and notably (or at least aspiringly) pedantic friend that the person to whom they were referring in an employment reference was 'discreet' and not 'discrete' . . .
And also (confession time now) persistently experiencing that 'have I turned off the cooker?' obsessive compulsive need to check and re-check that I've used the right 'compliment' or 'complement' for the job . . .
. . . has prompted me to bring to everyone's attention this terrifically useful list of Difficult Words on me old mate Julian's sporadic but excellent publishing blog.
May your ambiguities never again mess with your ambivalences, neither may you be loath to loathe the venal (. . . or should that be venial?)