English
limewater
From lime + water.
Proto-Indo-European *h₂leyH- ‘to smear’
Proto-Germanic *līmaz ‘glue, lime’
Proto-West Germanic *līm ‘glue’
Old English līm ‘glue’
Middle English lyme ‘organ, body part’
English lime
Proto-Indo-European *wed- ‘water; to well’
…
Proto-Germanic *watōr ‘water’
Proto-West Germanic *watar ‘water’
Old English wæter ‘water’
Middle English water ‘water’
English water
Today it means
noun A solution of calcium hydroxide (slaked lime) in water (that is, a saturated calcium hydroxide solution), used as a simple test for carbon dioxide, and in skin preparations.
Language periods are conventional ranges, not dates for this word.
Etymograph / limewater