Fro

Away from or back (used in 'to and fro'). As a noun, short for afro, referring to a natural hairstyle where hair forms a rounded mass.

From Old Norse 'frá' meaning 'from, away.' The directional sense evolved in Middle English, typically paired with 'to' in the phrase 'to and fro.' The hair sense is a 1960s abbreviation of 'afro,' referring to African-styled hair.