Beware, older languages below!
The languages below were invented during Tolkien's earlier period and should be used with caution.
Remember to never, ever mix words from different languages!
Qenya
lapse
noun.babe
A noun in The Etymologies of the 1930s glossed “babe” derived from the root ᴹ√LAP (Ety/LAP). The root was unglossed in The Etymologies, but in notes both before and after the 1930s this root had glosses like “enfold” and “fold”, so perhaps lapse meant something like “✱swaddled one”; hat-tip to Lokyt for this suggestion.
A noun in The Etymologies of the 1930s glossed “babe” derived from the root ᴹ√LAP (Ety/LAP). The root was unglossed in The Etymologies, but in notes both before and after the 1930s this root had glosses like “enfold” and “fold”, so perhaps lapse meant something like “✱swaddled one”; hat-tip to Lokyt for this suggestion.