insistence

noun

Etymology: From Middle English insistence, derived from Old French insister (“to insist”). Compare Middle French insistance. Morphologically insist + -ence.

1. The state of being insistent.

   “He made gourd-rattles (known in ever so many parts of the world) in which he rattled dried seeds or small pebbles with a most beguiling and rain-like insistence[.]”

   “The extreme depth of these channels, and the insistence of the Board of Trade on a headway of 150 ft. for the unrestricted passage of large ships, necessitated a high bridge with two main spans, and a central pier on Inchgarvie.”

2. An urgent demand.
3. The forcing of an attack through the parry, using strength.