サイ

もよう.す、もよお.す

催, 亻, 崔, 山, 隹

sponsor, hold (a meeting), give (a dinner)

開催(かいさい): holding a meeting; open an exhibition
主催(しゅさい): sponsorship (i.e. conducting under one's auspices); promotion; organizing; organising; hosting; staging
催し(もよおし): event; festivities; function; social gathering; auspices; opening; holding (a meeting)
催す(もよおす): (1) to hold (a meeting); to give (a dinner); to show signs of (2) to feel (sensation, emotion, etc.)
催促(さいそく): request; demand; claim; urge (action); press for