The majority of simplified characters are drawn from conventional abbreviated forms, or ancient standard forms. For example, the orthodox character lai ("come") was written with the structure in the clerical script ( / , lishu) of the Han dynasty. This clerical form uses one fewer stroke, and was thus adopted as a simplified form. The character yun ("cloud") was written with the structure in the oracle bone script of the Shang dynasty, and had remained in use later as a phonetic loan in the meaning of "to say" while the radical was added to differentiate meanings. The simplified form adopts the original structure.
Try to answer this question if possible (otherwise reply "unanswerable"): What was written with the structure in the clerical script?
orthodox character