Peter speaks of women as if they were containers, as men are sometimes also spoken of. The abstract noun "understanding" can also be translated as a verb. Alternate translation: "wives, understanding that the woman is the weaker partner" (See: [[rc://en/ta/man/translate/figs-metaphor]] and [[rc://en/ta/man/translate/figs-abstractnouns]])
You can translate this using verbal phrases. Alternate translation: "honor them because they will also receive by grace the eternal life that God gives" (See: [[rc://en/ta/man/translate/figs-abstractnouns]])
Here "this" refers to the ways husbands should treat their wives. Alternate translation: "Live with your wives in this way" (See: [[rc://en/ta/man/translate/figs-explicit]])
To "hinder" is to prevent something from happening. This can be stated in active form. Alternate translation: "so that nothing will hinder your prayers" or "so that nothing will keep you from praying as you should" (See: [[rc://en/ta/man/translate/figs-activepassive]])