Correct spelling for the English word "Delapse" is [dɪlˈaps], [dɪlˈaps], [d_ɪ_l_ˈa_p_s] (IPA phonetic alphabet).
The word "delapse" can be traced back to its Latin root "delabi", which means "to glide down" or "to fall". It comes from the combination of two Latin elements: "de-" meaning "down" and "labor" meaning "to slide" or "to glide". Over time, "delabi" evolved into the Latin "delapsus", which means "to slide down" or "to slip". From there, the word entered the English language as "delapse", maintaining its original sense of falling or sliding down.