What dictionaries (online, software-based or in paper form) explain the origins of a word and its evolution over time? E.g. how the character was once written, how the usage – and the meaning – ...
The relationship between simplified and traditional characters can be a headache for organizations using both orthographies. "A number of surveys, such as [Xiandai 1986], have demonstrated that ...
Are there any websites or resources analogous to Detextify for maths? Presently, I do not know (but desire to learn) how to type Chinese characters.