OBMUTESCENCE
Source: 566, 567
obmutescence. Obmutescence, n. a loss of speech, silence
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Ob′mu‐tes″cence (ŏb′mū̍‐tĕs″sens), n. [[L. obmutescens, p. pr of obmutescere to become dumb; ob (see Ob-) + mutescere to grow dumb, fr. mutus dumb.]] 1. 1. A becoming dumb; loss of speech. Sir T. Browne.
2. 2. A keeping silent or mute. Paley.