How do I stop wrong email address?

knightstyle

So some friends have changed their email address and I have put the new one into contacts on Gmail.
But when I go to send them an email I keep getting their old one come up in the address bar.
How do I delete this from the memory, it is no longer in contacts?

[Deleted User]

https://www.bing.com/search?q=gmail+how+to+delete+email+address+from+suggested+contacts&qs=n&form=QBRE&pc=COSPM01&sp=-1&pq=gmail+how+to+delete+email+address+from+suggested+contacts&sc=0-57&sk=&cvid=055FA97496B44DB38AB579F3E94E3C18

I would ignore the first one ;-)