aphonic

It was almost as though someone had set up an aphonic ring, she thought, or at least a damper field.

"Wait a minute," Silence said, and murmured the Word that dissolved the aphonic ring.

Infants may manifest cardiac, aphonic, or pseudomeningitic forms of the disorder.

Once they had reached the outbuilding, and the aphonic ring was safely sealed around them, Silence dropped into the most comfortable of the chairs the gang had provided, sighing to herself.

As an experiment, Silence enclosed their rooms in an aphonic ring; when none of the gang members mentioned the creation, she sealed off the space with a simonist lock, keyed only to the star-travellers.