English kelp

← Middle English culp (inherited)

← Middle English culpe (mention)

← Middle English kilp (mention)

→ English kelper (suffix)

→ English kelpfish (compound)

→ English kelpwort (compound)

→ German Kelp (borrowed)

→ Spanish quelpo (borrowed)

→ French kelp (borrowed)

→ Galician golfe (cognate)

→ Norwegian Bokmål tang (link)