curiousness

noun4

1. •
   Curiosity; inquisitiveness.
2. •
   (old-fashioned) The state of being curious; exactness of workmanship; ingenuity of contrivance.
3. •
   The product or result of being curious.
4. •
   (no longer used) Care; carefulness; pains.

   • [M]y father's care / With curiousness and cost, did train me up / In all those liberal qualities that commend / A gentleman: […] — 1624