英语词源字典 - 在线词源网站

film-maker (n.)[film-maker 词源字典]: also filmmaker, 1859 as a solution used in developing photographs, later "a producer of film for cameras" (by 1889), from film (n.) + maker. As "producer of a cinematographic work, movie-maker," from 1905.[film-maker etymology, film-maker origin, 英语词源]
Leica: 1925, proprietary name of cameras made by firm of Ernst & Leitz Gesellschaft, Wetzlar, Germany.
thread (v.): "to put thread through a needle," mid-14c., from thread (n.); in reference to film cameras from 1913. The dancing move called thread the needle is attested from 1844. Related: Threaded; threading.
track (v.): "to follow or trace the footsteps of," 1560s, from track (n.). Meaning "leave a footprint trail in dirt, mud, etc." is from 1838. Of film and TV cameras, 1959. Related: Tracked; tracking.