大抵
たいてい · taitei · JLPT N4 · na-adj
usually
大抵 = big (大) + reach/hit against (抵): it holds in the big majority of cases
大 means big, and 抵 means to reach or come up against. Together: what you run into for the big part of the time, hence usually or generally. Sound hook: taitei is two near-rhyming beats, tai-tei, steady and regular like the habit it describes.
大 — pictograph of a person with arms outstretched
大 is a pictograph showing a person standing with arms and legs spread wide. The outstretched arms suggest 'big' or 'great', extending from the literal image of a large stance to abstract meanings like important or grand. It is one of the oldest characters, found on oracle bones.