Economise.
Eternally is a synonym for forever. It begins with the letter e.
Error is a synonym for not true. It begins with the letter E.
Ephemeral.
Emit is a synonym for send out. It begins with the letter e.
Energetic is a synonym for driving. It begins with the letter E.
Elegant is a synonym for beautiful. It begins with the letter e.
Equal is a synonym for not odd. It begins with the letter e.
Endorse is a synonym for allow. It begins with the letter E.
Entropy is a synonym for chaos. It begins with the letter e.
Entertaining is a synonym for funny. It begins with the letter e.
Effort is a synonym for task. It begins with E.
eliminated