Chữ Nôm spelling of chóng

Here it tells someone to get a task done quickly.

This is a chữ Nôm spelling of chóng, the Vietnamese word “quickly.” Chữ Nôm was a Vietnamese writing system that adapted Chinese characters and their parts to write Vietnamese speech.

A Nôm dictionary cites 𨄞 on folio 21a of the handwritten poetry collection Giai cú: “Muốn chóng phải chăm mài bút sắt” (“To work quickly, keep sharpening the iron pen”). The entry parses the form as a foot component plus 速, read tốc in Vietnamese; the second element also carries the sense of speed.