登校
とうこう · toukou · JLPT N1 · noun
attendance
登 — 癶 (two feet ascending) + 豆 (ritual vessel)
Originally a pictograph showing two feet (癶) climbing up to present a ritual vessel (豆) on a raised platform. The core meaning was 'to ascend' or 'mount,' as when stepping up to make an offering. From this it broadened to 'rise, climb, record, publish.'