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

Origin: ME ascenden < OFr ascendre < L ascendere < ad-, to + scandere, to climb

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)