㕣 yǎn
“a marsh at the foot of the hills, (interchangeable 湢 沇) name of a river”
On its own, an ordinary character; Cantonese jin5. Readings and gloss from the Unicode Unihan database.
Carries Lead
Not a plain transliteration: the component was chosen for its meaning, or the name is older than the system.
The reading drifted: the component is read yǎn, the element qiān.