諸 a phono-semantic compound:
言 (words, speech) - Semantic element, relating to “speech” or “language;”
者 (person/thing) - Phonetic element, providing the sound 제 (zhū).
There are two forms encoded:
諸 (U+8AF8) – standard form without the dot inside 者.
諸 (U+FA22) – variant form with a dot inside 者 (rarely distinguished in modern fonts).