Old English þyncan

← Proto-Germanic *þunkijaną (inherited)

← Old High German dunken (cognate)

← Gothic 𐌸𐌿𐌲𐌺𐌾𐌰𐌽 (cognate)

← Old Norse þykkja (cognate)

← Old Saxon thunkian (cognate)

→ English think (inherited)

→ English forthink (inherited)

→ Low German dünken (cognate)