The name of Winter Solstice and Summer Mo means winter solstice and late summer, which is homophonic.
homophonic words refer to words with the same or similar sounds. It may have something to do with dialects. Qin unified Chinese characters, but there was no unified pronunciation. So homophonic words appear.
At present, it is generally believed that homonym is homophonic, that is, using homonym or homonym of Chinese characters to substitute homonym or homonym for the original word, thus generating poetic interest.