ذلك

ذَا (ḏā, “this”) +‎ لِ (li, “to”) +‎ كَ (ka, “you”).

• IPA^(key): /ðaː.li.ka/

ذٰلِكَ • (ḏālika) m (feminine تِلْكَ (tilka))

1. that (demonstrative pronoun)

   ذٰلِكَ طَيِّبٌ ― ḏālika ṭayyibun ― that is good

   ذٰلِكَ الشَّيْءُ طَيِّبٌ ― ḏālika aš-šayʔu ṭayyibun ― that thing is good

In Quranic Arabic, the number and gender of the addressed people can be indicated by different suffixes. These forms aren't usually used in MSA.

• هٰذَا (hāḏā, “this”)

• هُنَاكَ (hunāka)
• هُنَالِكَ (hunālika)

• Wehr, Hans (1979) “ذا”, in J. Milton Cowan, editor, A Dictionary of Modern Written Arabic, 4th edition, Ithaca, NY: Spoken Language Services, →ISBN