Irish lag

← Proto-Celtic *laggos (inherited)

← English slack (cognate)

← Proto-Indo-European *(s)leh₁g- (derived)

← Latin laxus (cognate)

← Old Irish lac (inherited)

→ English lage (derived)

→ Irish lagmheasartha (compound)

→ Irish lagsprid (compound)

→ Manx lagg (cognate)