commercial suffix, probably originally in pianola (q.v.).
Entries linking to -ola
Pianola n.
c. 1896, trademark name (1901) of a mechanical player-piano device using perforated rolls of paper, from piano, the ending perhaps abstracted from viola and meant as a diminutive suffix. The pianola's popularity led to a rash of product names ending in -ola, especially Victrola (q.v.), and slang words such as payola. Related: Pianolist.
granola n.
by 1967, American English, probably from Italian grano "grain," or granular, with commercial suffix -ola. Earlier, with a capital G-, it was a proprietary name (reg. 1886 by W.K. Kellogg, in use into early 20c.) for a kind of breakfast cereal.
Shinola n.
brand of shoe polish, by 1904, from shine in the "shoeshine" sense + commercial suffix -ola. The company that made it dates to 1877 and seems to have ceased production c. 1960, but by then the word was proverbial for what you don't know something isn't.