Welsh gwlân

← Proto-Brythonic *gwlan (inherited)

← Proto-Celtic *wlanā (inherited)

← Proto-Indo-European *h₂wĺ̥h₁neh₂ (inherited)

→ English wool (cognate)

→ English flannel (cognate)

→ Welsh gwlanog (suffix)

→ Welsh gwlana (affix)

→ Danish flannel (cognate)

→ Irish olann (cognate)

→ Latin lana (cognate)

→ Latin vellus (mention)

→ Portuguese flanela (cognate)