Answer: iinsist

AnswerCrossword Clue
IINSIST

"Oh, but you must!"

IINSIST

"No, really, this one's on me"

IINSIST

Adamant words

IINSIST
Uncompromising words
IINSIST
"You can't dissuade me!"
IINSIST"No point arguing with me ..."
IINSISTDemanding phrase
IINSIST"No ifs, ands, or buts!"
IINSISTTreater's phrase
IINSIST"Really! It's MY treat!"
IINSIST"It's MY treat!"
IINSIST"No use arguing with me"
IINSIST"No, you go, really"
IINSISTResponse to a polite refusal - (next line) It's spelled out in a Tammy Wynette hit
IINSIST"No, you really must!"
IINSIST"No, no, it's my treat!"
IINSIST"No, no, really ..."
IINSISTWords of resolution