Aided the researchers in their discovery; aided the prisoners' attempt to escape.
Aided in the effort to improve services to the elderly.
Gave aid to the enemy.
Giving a grant to a student for college expenses is an example of aid.
Origin of aid
- Middle English aiden from Old French aider from Latin adiūtāre frequentative of adiuvāre to help ad- to ad- in Indo-European roots iuvāre to help
From American Heritage Dictionary of the English Language, 5th Edition