Wiktionary:Word of the day/2024/January 13

1. Moving upward; ascending, rising.
2. (figurative) Controlling, dominant, surpassing.
3. (astrology) In an eastern direction rising just above the horizon.
4. (astronomy) Rising towards the zenith.
5. (botany, physiology) Of a part of an organism: synonym of ascending (“leading or sloping upwards”)
6. (genealogy, archaic or obsolete) Synonym of ascending (“of or pertaining to one's ancestors”)

ascendant n

1. (astrology, also figurative) The degree of the zodiac or point of the ecliptic which rises in an eastern direction above the horizon at a particular moment (especially the moment of a person's birth), which is supposed to have a commanding influence on a person's fortune and life; a horoscope.
2. (by extension)
   1. Chiefly in in the ascendant: an act of ascending or rising.
   2. (figurative) Synonym of ascendancy (“commanding influence; dominant control; superiority, supremacy”)
   3. (genealogy) An ancestor.
   4. (obsolete)
      1. A person who ascends or goes up; specifically (usually followed by to), a person who ascends to a throne or assumes some other position of power.
      2. Something which is higher than the things around it; a peak, a summit; specifically (typography), synonym of ascender (“the portion of a lowercase letter that extends above the midline”)
      3. Something which leads or slopes upwards, such as a flight of stairs or an upward incline.
      4. (rare) A person who supports a policy of ecclesiastical or national supremacy.