Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English thwack
Old English þaccian (inherited)
English whack (link)
English tangent (link)
English thack (doublet)
Middle English thakken (inherited)
Proto-Germanic *þakwōną (inherited)
Proto-Indo-European *teh₂g- (root)
Proto-Indo-European *teh₂g- (inherited)
Icelandic þjökka (cognate)
Icelandic þjaka (mention)
Latin tangō (cognate)
Norwegian tjåka (cognate)
Old Norse þykkr (cognate)
Old Dutch þakolōn (cognate)

English integer (mention)
English tangent (link)
English whack (mention)
English thack (link)
English thwacker (suffix)
English thwomp (mention)
English bethwack (prefix)
Old English þaccian (link)
Icelandic þjaka (link)