اِطْبَأَنَّ
Root: طبن
Form: Q. Q. 4
Full Definition
اِطْبَأَنَّ
i. q.
اِطْمَأَنَّ; formed from the latter by substitution [of ب for م]. (S in art. طمن.) So in the phrase اِطْبَأَنَّ قَلْبُهُ, meaning His heart became quiet, at rest, at ease, or tranquil.