Possible Clues:

•     Averse to, in dialect
• Over, in much Twain dialogue
• Not "fer," to hillbillies
• ''Not fer''
• Once more, country-style
• Buckin'
• Opposed to, to Jethro Bodine
• Opposed to, to Pappy Yokum
• Votin' nay
• Glaswegian's opposed to single drink