pre-noun adjectival
Mother (as in Mother Earth, Mother Nature)
Fixed literary modifier used before nouns like 自然 (nature), 大地 (earth), 海 (sea) to personify them as a nurturing mother. Not used as a standalone noun.
See also: 母なる自然
母なる自然は時に厳しい。
Mother Nature can be harsh at times.
母なる大地の恵みに感謝する。
We give thanks for the blessings of Mother Earth.