Basque lau

← Basque labur (mention)

← Proto-Basque *lanu (inherited)

← Proto-Basque *laur (inherited)

← Latin plānum (derived)

← Aquitanian *laur (cognate)

← Aquitanian *laurco (mention)

← Aquitanian *laurina (mention)

← Aquitanian *Laureiereta (mention)

← Iberian lau(r) (cognate)

→ Basque laurogei (mention)

→ Basque hamalau (affix)

→ Basque hogeita lau (mention)

→ Basque berrogeita lau (mention)

→ Basque hirurogeita lau (mention)

→ Basque lauburu (affix)

→ Basque laugarren (affix)

→ Basque lauhortz (compound)