Aler or Aller: How To spell?

The word Aler is misspelled against Aller, an adjective meaning "all; -- used in composition; as, alderbest, best all, alderwisest, wisest all."

Aller has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings a & er which should not be misspelled with single 'L'
Wrong Spelling:  a-l-er 
Correct Spelling:  a-ll-er 
Explore spell check of Aller to spell without errors.