Character Contained In References Comments
External references for 于
Zhongwen.com traditional etymology dictionary
International Encoded Han Character and Variants Database
ChineseEtymology.org
Unihan database
Cojak Hanzi Dictionary
Tower of Babel spoken word etymology database
ZDIC.net Chinese-Chinese Dictionary
Usage rank
Kang Xi radical 7.1
Big5 code A45F
Number of strokes 3
Karlgren
GSR 0097a