👉 The term "stiffest" is used in a technical sense to describe something that is hard, strong, or resistant to being broken. It doesn't have any direct meaning in everyday language and can be considered an idiom that is often used in technical contexts.

staunchest

👉 Stiachen is a German word that translates to "stiff" or "firm." It's often used in the context of a person who is very firm and resistant to change, as if they were stuck in an iron core. The word comes from the Latin word "stiach," which means "hard" or "strong" in English.

staunches