conjunction Etymology: Middle English les the, ~e, from Old English thȳ lǣs the, from thȳ (instrumental of thæt that) + lǣs + the, relative particle Date: before 12th century for fear that
LEST
Meaning of LEST in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012