ascendant

adjective

1. rising; ascending
2. in control; dominant; superior
3. Astrol. designating or of the ascendant (); rising
4. Bot. ascending (sense )

Origin: OFr < L ascendens, prp. of ascendere, ascend

noun

1. a dominating position; ascendancy
2. an ancestor
3. Astrol. the sign of the zodiac just above the eastern horizon at any given moment, specif. at the time of one's birth