Im not sure if this has been discussed, I am very new to Etymology/trying to remember how it works.
I was at work today and was typing some automation code to test the company's software when i noticed the word "password" but the textbox that it was in wasn't long enough to display the entire text string so all that was displayed was"ssword".
I kinda laughed at it thinking "heh, s sword" thinking about the Z sword from DBZ, but after a few seconds i realized that the word could be broken down to "Pa's sword".
A password is used to get pass defenses (gain entrance), just like a sword is used to get past defenses (penetrate armor).
I wanted to get feed back on this and though, where better to ask then the Etymology group :)