Han character 詤

詤 is tied to “dream speech” and the lie sense of 謊.

The 《說文解字》 (an early Chinese dictionary in the Eastern Han tradition) gives 𧧢, a related entry form, the gloss “dream speech.” 詤 is built from 言, the speech component, and 巟, which supplies its sound.

Later dictionary examples from the Yuan, Ming, and Qing periods use 謊 for lying, deception, or something false; 詤 is recorded as a variant in that false-speech sense.

詤 vs 謊: which one should you use?

For an ordinary modern lie, use 謊 (simplified 谎).

Use 詤 when a source or historical spelling calls for it. In ordinary modern Chinese writing, it can look archaic or like a wrong-character choice.