English
law-trained
From law + trained.
Proto-Indo-European *legʰ- ‘to lie’
…
Old Norse lag ‘layer, stratum, a laying in order’
Old Norse lǫg ‘law’
Old English lagu ‘law’
Middle English lawe ‘law’
English law
Today it means
adj who studied law, who has a law degree
Language periods are conventional ranges, not dates for this word.
Etymograph / law-trained