large city in Lancashire, Mameceastre (1086), from Mamucio (4c.), the original Celtic name, which is perhaps from *mamm "breast, breast-like hill," + Old English ceaster "Roman town" (see Chester). Adjective Mancunian is from the Medieval Latin form of the place-name, Mancunium.
1690s, capital of the Philippines, said to be from Tagalog may "there is" + nila "shrub of the indigo family," but this last element would not be a native word. It gave its name (with altered spelling) to manilla hemp (1814), the original source of manilla paper (1832); see manilla (1).
1841, "pertaining to the uppermost strata of the Paleozoic era," named by British geologist Sir Roderick Impey Murchison (1792-1871) for the region of Perm in northwestern Russia, where Murchison had studied rocks from this epoch. His original definition of the rock system was somewhat broader in each direction, chronologically, than the current one.