Chevalier

SHA-VA-ALL-EEE-EY

Companion,
Protector,
Usually The case is where some pledges to protect another person And do whatever they say

Being extremly Loyal and Protecting One Person or More

Example.
Chevalier: I Promise to You that i Shall Be with you Forever And Protect You from Any One even If it cost me my Life"

chevalie: I want you to help me Save my brother/Sister/Mother/Father"

Chevalier: if that is what you wish. I shall help You with whatever you ask of me"