1. Maanasa is the name of a goddess worshipped in the form of a snake , the cult prevalent in Bengal, some parts of the north-east India and Nepal. Maanasaahi can be maanasa + ahi
2. Maan + s'aah can be the king by name Maan . But Maans'aahi derived from this should mean kinghood of a person/ dynasty by name s'aah.

Nagaraj Paturi
Hyderabad, Telangana, INDIA.
Former Senior Professor of Cultural Studies
FLAME School of Communication and FLAME School of  Liberal Education,
(Pune, Maharashtra, INDIA )