Definition of overlight in US English:

overlight

noun

rare
  • An excess of light.

adjective

  • Too light, excessively light; too insubstantial or frivolous; too easy.

verb

  • 1with object Chiefly poetic. To shed light over; to shine over.

  • 2with object To illuminate too brightly.

Origin

Early 17th century; earliest use found in Francis Bacon (1561–1626), lord chancellor, politician, and philosopher. From over- + light<br>late Middle English; earliest use found in Geoffrey Chaucer (c1340–1400), poet and administrator. From over- + light<br>Old English (in an earlier sense). From over- + light. Compare Middle Dutch overlichten to illuminate.

Pronunciation

overlight

/ˈəʊvəˌlʌɪt/