Proto-West Germanic *þakkjan

→ English deck (derived)

→ English deck (derived)

→ English thatch (inherited)

→ Old English þeccan (inherited)

→ Middle Dutch decken (inherited)

→ Middle English thacchen (inherited)

→ West Frisian dekke (inherited)

→ Luxembourgish decken (inherited)

→ Dutch dek (derived)

→ Dutch dekken (inherited)

→ Old Dutch thecken (inherited)

→ Polish dek (derived)

→ Yola detch (inherited)