"هَل عِنْدِك بَلوزة زَرْقاء يا ريم؟"

Translation: Do you have a blue blouse, Reem?

[Zainab_Ahmed.]

Why has blue gone from "azraq" to"zarqaa"?

[gyorokpeter]

This is the "templates and roots" system in action.

So you have 2 templates:

a) 2a••a• (masculine)

b) •a••aa2 (feminine)

You fill the missing letters with the template to get the full word.

For "b-y-D" (white):

a) 2abyaD

b) bayDaa2

For "z-r-q" (blue):

a) 2azraq

b) zarqaa2

Interestingly, in addition to colors, some "defects" (e.g. deaf, blind) also use this pattern.

https://en.wiktionary.org/wiki/Appendix:Arabic_nominals#Color_or_defect_adjectives

[ruyalty]

This is Very helpful شكراً

[arabmouni]

This is the masculine vs feminine forms of the colors. Every color (since they are adjectives) have a masculine and feminine form.

[Cypher922476]

So the colours change to the feminine forms to match "skirt"?

[Cypher922476]

Er, I meant "blouse"

[shaquille123]

Is it? Then what about "Feroza"

[eastwest_liou]

Can you translate "بَلوزة" as "shirt"also?