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 wæter
← Proto-Germanic *watōr (inherited)
← Proto-West Germanic *watar (inherited)
← Proto-Indo-European *wédōr (inherited)
← Proto-Indo-European *wódr̥ (mention)

→ English water (inherited)
→ Old English wætergelæt (compound)
→ Old English wæterlic (affix)
→ Old English wæterleas (suffix)
→ Old English wæterig (affix)
→ Old English wæterflod (affix)
→ Old English wæternædre (affix)
→ Old English wæterseocnes (compound)
→ Old English wæteradl (compound)
→ Old English wæterseoc (compound)
→ Old English wæteryþ (compound)
→ Old English wætergefeall (compound)
→ Middle English water (inherited)
→ Old High German wazzar (cognate)
→ Gothic 𐍅𐌰𐍄𐍉 (cognate)
→ Ancient Greek ὕδωρ (cognate)
→ Old Norse vatn (mention)
→ Old Norse vatn (cognate)
→ Sanskrit उदन् (cognate)
→ Scots watter (inherited)
→ Yola waudher (inherited)