Answer
This is an official answer by QuranicNames.com Staff
Manahil is a non-Quranic Arabic name for girls that means "fountain", "spring". It is pronounced as (MU)st + (NA)p + (HI)m + p(L)ay, with the stress on the second syllable (the na part). It is spelled as مناهل in Arabic and can be spelled as Manaahil, Manahel, Manaahel, Menahil, Menahill, Manaahil in English.
Since the meaning of Manahil is good, it is an acceptable name for Muslims.