How do I get rid of the email history on tumblr?

[Aleeeeeexx!]

(I use Google Chrome)
When i go on tumblr and click the email part of the log in it gives me email options that I've already used to log in. I accidentally put half of my password in the email section and i don't want people to go on my laptop and see my password.
I've tried scrolling over it and clicking the delete button but it's still there. Does anyone know what to do for a situation like this? Please help!!
I got it!! Never mind but thank you for your answers! Instead of deleting my entire search history, i just typed into the Google chrome history search bar, "www.tumblr.com/login" and it gave me all the times I've signed in. I just deleted all of those and it didn't show up anymore so here you go for everyone with this problem!!