制する
せいする · seisuru · JLPT N1 · verb-suru
to control
🎮 Sounds like 'say': say the command and you control the room (せいする = to control, to command)
制 has the knife radical 刂, from an old sense of cutting cloth to a fixed pattern, so control means cutting things to a set rule. A game controller works the same way: its buttons govern every move.
制 — knife 刂 + 未 (tree branches)
Originally depicted a knife 刂 cutting branches from a tree, showing the act of trimming or shaping wood. From this concrete sense of cutting to size came the meanings 'to make,' 'to manufacture,' and by extension 'to control' or 'regulate' — shaping things to a desired form.