Old English þencan

← Proto-West Germanic *þankijan (inherited)

← Old High German denken (cognate)

← Gothic 𐌸𐌰𐌲𐌺𐌾𐌰𐌽 (cognate)

← Proto-Indo-European *teng- (derived)

← Old Norse þekkja (cognate)

← Old Dutch thenken (cognate)

← Old Frisian thenka (cognate)

← Old Saxon thenkian (cognate)

→ English hink (inherited(en/sco))

→ English umbethink (mention)

→ Old High German denken (cognate)

→ Scots think (inherited)

→ Scots umbethink (mention)