[ 'heɪləʊ ]
■ noun ( plural ~es or ~s )
1》 (in a painting) a circle of light surrounding the head of a holy person.
2》 a circle of light round the sun or moon caused by refraction through ice crystals in the atmosphere.
■ verb ( ~es , ~ing , ~ed ) surround with or as if with a ~.
Origin
C16: from med. L., from L. ~s , from Gk halōs 'disc of the sun or moon'.