Correct spelling for the English word "Sleid" is [slˈe͡ɪd], [slˈeɪd], [s_l_ˈeɪ_d] (IPA phonetic alphabet).
To prepare for use in the weaver's sley.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "sleid" is derived from the Middle English term "slede", which itself originated from the Old English word "sled". The Old English term was borrowed from the Old Norse word "sleði", which meant a sled or a sledge. It is believed that the Old Norse word was influenced by the Proto-Germanic word "slaidiz", which also meant a sled. The Proto-Germanic term is further thought to have been derived from the Proto-Indo-European root "*slei-", which meant to slide or glide. Ultimately, the etymology of "sleid" can be traced back to this ancient root, reflecting its connection to the concept of sliding or gliding.