to be missing; to disappear; unaccounted for
失 (shī) · 5 strokes
Depicts a person with their hair loose. Based on the original meaning "leisure; carefree", now written as 佚. The meaning later shifted to "lose" and "fail".
踪 (zōng) · 15 strokes
Phonosemantic compound. 足 represents the meaning and 宗 represents the sound. Simplified form of 蹤.