Avivit is a variation of Aviva (English and Hebrew).
See also the related category hebrew.
Avivit is not regularly used as a baby name for girls. It is listed outside of the top 1000 names.
† English pronunciation for Avivit: AA as in "odd (AA.D)" ; V as in "vow (V.AW)" ; IY as in "eat (IY.T)" ; T as in "tee (T.IY)"