Webster’s Revised Unabridged Dictionary · 1913
Quiescence
Qui·es′cence, Qui·es′cen·cy, n. [L. quiescentia, fr. quiescens, p. pr.; cf. F. quiestence. See Quiesce.] The state or quality of being quiescent. "Quiescence, bodily and mental." H. Spencer.
Deeds will be done; — while be boasts his quiescence. R. Browning.