is lest in the Babel text?
sounds like a past tense conjugation of less, just like blest came from
blessed from bless. Unfortunately, we don't use less this way very often
anymore. I only find myself using it if I am missquoting a 'lest'
or else Y will happen
else Y (without the be verb)
-In the event that Y, then X, so as to
nullify (or mollify?) the effect of Y