Definition of overmourn in US English:

overmourn

verb

  • with object To mourn (a person, a person's death, etc.) excessively.

Origin

Late 16th century; earliest use found in Thomas Kyd (bap. 1558, d. 1594), playwright and translator. From over- + mourn.

Pronunciation

overmourn

/ˌəʊvəˈmɔːn/