English
linefill
From line + fill.
Proto-Germanic *līną ‘flax’
Proto-Germanic *līnǭ ‘line’
Proto-West Germanic *līnā ‘line’
Old English līne ‘line’
Middle English line ‘rope’
English line
Proto-Indo-European *pleh₁- ‘to fill’
…
Proto-Germanic *fullijaną ‘to make full’
Proto-West Germanic *fullijan ‘to fill’
Old English fyllan ‘to fill’
Middle English fillen ‘to fill up’
English fill
Today it means
noun The amount of liquid that fills a certain length of pipeline.
Language periods are conventional ranges, not dates for this word.
Etymograph / linefill