microdocumentary

Etymology tree
Proto-Indo-European *mey-der.?
Ancient Greek μικρός (mikrós)der.
English micro-
Proto-Indo-European *deḱ-der.
Proto-Italic *dokeō
Latin doceō
Proto-Indo-European *-mn̥
Proto-Indo-European *-mn̥tom
Proto-Italic *-mentom
Latin -mentum
Latin documentumbor.
French document
Proto-Indo-European *-yósder.
Proto-Italic *-āzijos
Latin -āriusder.
French -aire
French documentairebor.
English documentary
English microdocumentary
From micro- + documentary.