Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

WORD ORIGIN

c.1300 contraction of all ane, from Old English all ana "unaccompanied, all by oneself," from all "all, wholly" (see all) + an "one" (see one). Similar compounds are found in German (allein) and Dutch (alleen).

MORE RELATED WORDS FOR LET ALONE

deregulate

verbremove imposed controls on a system
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.