←
Middle Dutch sōmer (inherited)
←
Old Dutch *sumar (inherited)
→
Afrikaans somer (inherited)
→
Alemannic German summer (cognate)
→
Alemannic German Summer (cognate)
→
Alemannic German sòmmer (cognate)
→
Alemannic German ŝchumer (cognate)
→
Luxembourgish Summer (cognate)