Luxembourgish. Summer
Swiss German. Summer
West Frisian/Scots. Simmer
Värmlandic. Sammer
Danish/Norwegian/German. Sommer
Swedish. Sommar
Faroese. Summar
Icelandic. Sumar
Old English. Sumor
Dutch. Zomer
Unrelated, but also somewhat related. And posting to refer to later. 50 words for snow in Swedish:
watchingtheswedes.com/2018/02/28/50-…