|Origin:||aider, from Latin adjutare, from adjuvare, from ad- 'to' + juvare 'to help'|
to help someone do something:
an index to aid the reader
aid somebody in/with (doing) something
Mrs Coxen was aided in looking after the children by her niece.
to make something happen more quickly or easily:
Welfare spending aids economic development in three ways.
to help someone do something illegal