Cinders

The cinders were still smoking.

Source: tatoeba (2268048)

When she had done her work, she used to go into the chimney corner, and sit down among the cinders, hence she was called Cinderwench. The younger sister of the two, who was not so rude and uncivil as the elder, called her Cinderella.

Source: tatoeba (6211643)

The fire which seems extinguished is often dormant under the cinders; whoever wants to revive it may be in for a surprise.

Source: tatoeba (6216540)

It was a spacious harbour, sheltered deep / from access of the winds, but looming vast / with awful ravage, AEtna's neighbouring steep / thundered aloud, and, dark with clouds, upcast / smoke and red cinders in a whirlwind's blast. / Live balls of flame, with showers of sparks, upflew / and licked the stars, and in combustion massed, / torn rocks, her ragged entrails, molten new, / the rumbling mount belched forth from out the boiling stew.

Source: tatoeba (7340219)