yuánzì Chinese characters of the chemical elements
丢

丢 diū

“discard”

On its own, an ordinary character; Cantonese diu1. Readings and gloss from the Unicode Unihan database.

Carries Thulium

钅 metal → solid metal
+
丢 diū
=
铥 diū · Tm 69

Transliterates syllable 1 of thu·lium: thulium → diū.

The element keeps the component’s reading exactly.