Translation of "Degenerate" in French

There remain great fears of seeing the clashes degenerate into massacres.

Les craintes restent grandes de voir les affrontements dégénérer en massacres.

- Don't let your muscles atrophy.
- Don't allow your muscles to degenerate.

Ne laissez pas vos muscles s'atrophier.

"Go then", cries Pyrrhus, "with thy tale of woe / to dead Pelides, and thy plaints outpour. / To him, my father, in the shades below, / these deeds of his degenerate son deplore."

" – Eh bien, cours aux enfers conter ce que tu vois ; / dis au fils de Thétis que son sang dégénère. "