Summer

Summer is one of those words, like father or mother or others close to heart and home, that has come to us almost unchanged since its origin thousands of years ago.
 
The word summer has its origins in the Proto-Indo-European (PIE) root sm (summer) which is the source of words such as Sanskrit sama (season), Avestan hama (in summer), Armenian amarn (summer), and Old Irish sam, Old Welsh ham, and Welsh haf, all meaning summer.
 
The PIE root sm is also the source of Proto-Germanic sumra, Old Saxon, Old Norse, Old High German sumar, Old Frisian sumur, Middle Dutch somer, Dutch zomer, German Sommer, and Old English sumor—all meaning summer. Old Norse sumarsdag, the first day of summer, was the Thursday that fell between April 9 and 15.
 
Those of you with a carpentry background will know that the late 13th century word summer refers to a horizontal bearing beam in a timber-framed building; but let that be another story.
 
Reference: Online Etymological Dictionary, https://www.etymonline.com/
​