Answer: soitis

AnswerCrossword Clue
SOITIS"Ah, I guess that's right"
SOITIS"By gum, you're right!"
SOITIS"I see that now"
SOITIS"Why, you're right!"
SOITIS"Just like you said"
SOITIS"You're right after all"
SOITIS"I was evidently mistaken"
SOITIS"You're absolutely right!"
SOITIS"You're right about that"
SOITIS"Indeed, yes"