OK – just a quick post today! Am reading 《馬橋詞典》(Dictionary of Maqiao) by 韓少功 (Han Shaogong) at the minute and came across a word for a woman’s period or menstruation – 例假 – that I hadn’t seen before. For some reason I read this as 例期 however and looking it up I found the variant 朞 – a bottom top variant of 期 – combining 其 and 月. This reminded me of a few other variants that follow this pattern, like 峰 and 峯 feng1 “summit,” and 群 and 羣 for “qun1” crowd.
There’s also 鑒 and 鑑 jian4 which have their ingredients stirred around a little.
Let me know if you know of any others!