purl² /pûrl/

1. To flow with a murmuring sound
2. To flow in eddies
3. To curl or swirl

1. A trickling brook (obsolete)
2. A movement or murmuring eg of a stream among stones
3. An eddy or ripple (also pirl)

purlˈing noun and adjective

• ostium
• OStJ
• ostler
• ostleress
• ostlers
• Ostmark
• Ostmarks
• Ostmen
• -ostomy
• Ostpolitik
• ostraca
• ostracean
• ostraceous
• Ostracion
• ostracise
• ostracised
• ostracises
• ostracising
• ostracism
• ostracisms
• ostracize
• ostracized
• ostracizes
• ostracizing
• ostracod