Old English þenċan

→ English think (inherited)

→ Old English þanc (link)

→ Old English geþencan (prefix)

→ Old English ymbþencan (prefix)

→ Old English beþencan (prefix)

→ Old English foreþencan (prefix)

→ Old English geondþencan (prefix)

→ Old English þeaht (affix)

→ Middle English thinken (inherited)

→ Scots hink (mention)