stick-to-it-iveness

Or stick-to-it·ive·ness

[stik-too-it-iv-nis]

noun

Informal.

1. determination and persistence, especially in spite of difficulties; perseverance.

   Call it stubbornness or stick-to-it-iveness, but she eventually won support for the proposal.

Word History and Origins

Origin of stick-to-it-iveness¹

An Americanism dating back to 1855–60; from the phrase stick to it + -ive ( def. ) + -ness ( def. )