From the Latin base type māceria ('clay wall, enclosure of a garden or vineyard'; Georges under māceria), mainly two morpho-lexical types developed in VerbaAlpina's research area: For one thing, ita. maceria (Treccani under macèria) as well as the Veneto regional variant Treccani under maṡièra evolved. For another thing, the morpho-lexical type majarei developed through the suffix -etum. Both types denote the concept MOUNTAIN SLOPE, STEEP, COVERED IN SCREE.
These two morpho-lexical types are mainly established in the Italian Eastern Alps (see the map on māceria) where the base type briefly commented on here could also emerge as an anthroponym and as a toponym (cf. Pallabazzer 1972, 71). Some examples are located on this map (this list is not exhaustive).
As a family name, Masarei (māceria + suffix -etum) lives on, especially in the Dolomites and particularly in Livinallongo del Col di Lana and Colle Santa Lucia.