%obmutescence%

n. [ L. obmutescens, p. pr of obmutescere to become dumb; ob (see Ob-) + mutescere to grow dumb, fr. mutus dumb. ] 1. A becoming dumb; loss of speech. Sir T. Browne. [ 1913 Webster ]

2. A keeping silent or mute. Paley. [ 1913 Webster ]