English
filmstrip
From film + strip.
Proto-Indo-European *pél-mo- ‘membrane’
Proto-Germanic *filmīn- ‘thin skin, membrane’
Proto-West Germanic *filmīn-
Old English filmen ‘film, membrane, thin skin’
Middle English filme ‘film’
English film
Today it means
noun A length of film containing individual photographs or diagrams intended to be shown in sequence as instruction or as a visual aid.
Language periods are conventional ranges, not dates for this word.
Etymograph / filmstrip