from Latin mōmentāneus momentary + -ous;
very common in the 17th century.
c 1610 - The Lives of Women Saints of our Contrie of England;
see Example below
From: The Lives of Women Saints of Our Contrie of England
Edited by C. Horstmann, 1886
The Life of St. Cuthburge Queene and Virgin: aboute the yeare: 690