noun
various things; all sorts of things; many things
Refers to a collection of diverse items, matters, or people. Often used when listing or summarizing multiple things without specifying each one. The 'large number of people' gloss is a less common extension; the core meaning is 'various things'.
引っ越しの準備で、もろもろの手続きに追われている。
I'm busy with various procedures for the move.
会議では、もろもろの問題
At the meeting, we discussed various issues.
Single-character spelling; rare and mostly found in older or formal contexts.
色々 is more common in everyday speech and can be used as an adverb or na-adjective, while 諸々 is slightly more formal and often used as a noun before の.
様々 emphasizes diversity and variety, often with a nuance of 'many different kinds', while 諸々 simply indicates a collection of multiple things without stressing their differences.
The reading もろもろ is a reduplication of もろ (諸), which itself is of uncertain origin. The kanji 諸 means 'various' or 'many'.