ascendible

intransitive verb

1. to go up; move upward; rise
2. to proceed from a lower to a higher level or degree, as in rank, pitch, etc.
3. to slope or lead upward
4. to go back in time or line of ancestry

transitive verb

1. to move upward along; mount; climb: to ascend stairs
2. to move toward the source of: to ascend a river
3. to succeed to (a throne)