Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Old English þicce
← Danish tyk (cognate)
← German dick (cognate)
← West Frisian tsjok (cognate)
← Proto-Germanic *þekuz (inherited)
← Proto-West Germanic *þikkwī (inherited)
← Old High German dicki (cognate)
← Proto-Indo-European *tégus (inherited)
← Icelandic þykkur (cognate)
← Low German dick (cognate)
← Dutch dik (cognate)
← Old Norse þykkr (cognate)
← Old Norse þjokkr (mention)
← Old Norse þjukkr (mention)
← Old Frisian thikke (cognate)
← Old Saxon thikki (cognate)

→ English thick (inherited)
→ English thicket (mention)
→ Old English þiccet (affix)
→ Old English geþicfieldan (confix)
→ Old English þicnes (suffix)
→ Breton tev (cognate)
→ Middle English thicke (inherited)
→ Old High German dicchi (cognate)
→ Old Norse þykkr (cognate)
→ Old Saxon thikki (cognate)