English
fileless
From file + -less.
Formed from file + -less
Proto-Indo-European *gʷʰiH-(s-)lo- ‘sinew’
Proto-Italic *fī(s)lom
Latin fīlum ‘thread’
Old French fil ‘thread’
English file
Today it means
adj Without a file or files; not utilising files.
Language periods are conventional ranges, not dates for this word.
Etymograph / fileless