solvable

adjective8

1. •
   Capable of being solved.

   • Intellective Memory, which I call an act of the intellective faculty because it is wrought by it, though I do not inquire how or where, because it is not solvible: — 1677
2. •
   Having a Galois group which is solvable.
3. •
   Such that the set of inputs for which the answer is yes is recursively enumerable.
4. •
   Having terminating derived series; see Solvable group on Wikipedia.Wikipedia
5. •
   Having terminating derived series (this is a distinct notion from the derived series of a group); see Solvable Lie algebra on Wikipedia.Wikipedia
6. •
   (no longer used) Able to pay one's debts.

   • […] although imprisonment was imposed by law on persons not solvable, yet officers were unwilling to cast them into goale, — 1655
7. •
   (no longer used) Capable of being dissolved or liquefied.

   • […] they administer Pearles, and Corrals being beaten to dust or dissolved in distilled vinegar, or the juice of limons, and again dryed, and solvable in any potable liquour: — 1664
8. •
   (no longer used, rare) Capable of being paid and discharged.