冷語 is read as れいご (reigo) and means hard words.
れいご
reigo
つべたい
cold (to the touch)
れいせん
cold war
れいせい
calmness
れいすい
cold water
ひややか
cold
ひえる
to grow cold (from room temperature, e.g. in refrigerator)
ひやす
to be frightened (at)
さめる
to be cold (eyes, expression, etc.)
ひやかす
to cool
ひえこむ
to feel very cold (of the body)
ひえしょう
sensitivity to cold
れいしょう
sneer