sī
an amphibious beast resembling a tiger with one horn
Origin unclear. 虎 depicts a tiger.
Components
Evolution

Seal script
Shuowen (~100 AD)
Clerical script
Qin dynasty (221-206 BC)
Clerical script
Western Han dynasty (202 BC-9 AD)Regular script
ModernDefinitions
sī
an amphibious beast resembling a tiger with one horn; place name; amphibious animal with one horn
Component uses
Meaning component in 1 character (0 verified)
Sources
許進雄《新編進階甲骨文字典: 甲骨文發現120周年紀念版》p.36