to blow upon, to breathe upon, to smile
欨 centers on directing breath outward: blowing upon something, breathing gently onto it, or—by extension—a soft smile that feels like a light exhalation.
欨 combines 欠 (open mouth, breath) with 句, which likely contributes the sound and may relate to the idea of expelling air or making a sound. The exact historical development is uncertain.
The left side 句 suggests a phrase or sound, and the right side 欠 shows an open mouth with breath. Picture someone leaning in to whisper a phrase, their breath gently blowing upon the listener, or a soft smile that escapes like a quiet exhalation.
For ク, imagine blowing cool air onto a hot surface: cool -> ク, and the breath from 欠 makes the sound.