Etymograph

English

lockfile

Compound of lock + file.

A compound of lock + file

Proto-Indo-European *lewg- ‘to bend’

Proto-Germanic *luką

Proto-West Germanic *lok ‘shutter’

Old English loc

Middle English lok

English lock

Proto-Indo-European *gʷʰiH-(s-)lo- ‘sinew’

Proto-Italic *fī(s)lom

Latin fīlum ‘thread’

Old French fil ‘thread’

English file

Today it means

noun A file whose existence, by convention, indicates that a particular resource is in use.

Language periods are conventional ranges, not dates for this word.

Etymograph / lockfile