Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Scottish Gaelic dearg
Old English deorc (cognate)
Proto-Celtic *dergos (inherited)
Proto-Indo-European *dʰerg- (derived)
Old Irish derg (inherited)
Tocharian B tarkär (mention)
Tocharian A tärkär (cognate)

Scottish Gaelic bàn-dhearg (compound)
Scottish Gaelic fo-dhearg (prefix)
Scottish Gaelic seillean càrdair nan lurgann dearg (compound)