أصل البلاطة الخزفية واضح.

It is a nominal sentence in Arabic:

• أصل البلاطة الخزفية = the subject/topic
• واضح = the predicate/comment

So the structure is:

• [subject noun phrase] + [predicate adjective]

In fully vocalized Arabic, it is:

• أصلُ البلاطةِ الخزفيةِ واضحٌ

A natural grammatical breakdown is:

• أصلُ = origin
• البلاطةِ الخزفيةِ = of the ceramic tile
• واضحٌ = clear

So literally: The origin of the ceramic tile [is] clear.

In Arabic, the present tense often does not use a separate word for is/am/are.

So:

• أصل البلاطة الخزفية واضح
  literally = The origin of the ceramic tile clear

But in correct English, we say:

• The origin of the ceramic tile is clear.

If you wanted was or will be, Arabic would usually use a verb such as كان or another tense form. But in the present, no written or spoken is is needed here.

Because أصل البلاطة الخزفية is an iḍāfa construction, often called a genitive/possessive construction.

In an iḍāfa:

• the first noun usually does not take ال
• the whole phrase can still be definite if the second part is definite

Here:

• أصل = first noun
• البلاطة الخزفية = second part, and it is definite because of ال

So:

• أصل البلاطة الخزفية = the origin of the ceramic tile

Even though أصل has no ال, the whole phrase is definite.

No. In this sentence, البلاطة الخزفية is noun + adjective, not iḍāfa.

• البلاطة = the tile
• الخزفية = ceramic

So:

• البلاطة الخزفية = the ceramic tile

The true iḍāfa is:

• أصل البلاطة الخزفية = the origin of the ceramic tile

A good way to see this is that الخزفية agrees with البلاطة as an adjective:

• both are feminine
• both are singular
• both are definite
• both are genitive here

That is adjective agreement, not iḍāfa.

Because in Arabic, adjectives normally come after the noun they describe.

So:

• البلاطة الخزفية
  literally = the tile ceramic

but in natural English:

• the ceramic tile

This is one of the most important word-order differences between English and Arabic.

الخزفية is an adjective meaning ceramic.

It comes from خزف, which relates to pottery / ceramics / earthenware.

So:

• بلاطة خزفية = a ceramic tile
• البلاطة الخزفية = the ceramic tile

It is feminine because بلاطة is feminine.

It describes البلاطة, not أصل.

So the phrase means:

• أصل [البلاطة الخزفية]
  = the origin of [the ceramic tile]

not:

• [the ceramic origin] of the tile

You can tell because الخزفية matches البلاطة in form:

• البلاطة = feminine singular definite
• الخزفية = feminine singular definite

If it were describing أصل, it would need to match أصل, which is masculine.

Because واضح agrees with the head noun of the subject, and that head noun is أصل, not البلاطة.

The full subject is:

• أصل البلاطة الخزفية = the origin of the ceramic tile

The main noun there is:

• أصل = origin

And أصل is masculine, so the predicate is masculine too:

• واضح = clear

If the sentence were about البلاطة itself being clear, then you would expect a feminine form like واضحة.

Because in this kind of sentence, the predicate is usually indefinite.

So:

• أصل البلاطة الخزفية واضح = The origin of the ceramic tile is clear

Using الواضح would not be the normal simple predicate here. It would sound more like the clear one or create a different structure.

This is a very common Arabic pattern:

• البيت كبير = the house is big
• الجو جميل = the weather is beautiful
• أصل البلاطة الخزفية واضح = the origin of the ceramic tile is clear

Yes. أصل has a core meaning of origin, source, root, foundation.

Depending on context, it can mean:

• the origin of something
• the original source
• the root/fundamental basis
• in some contexts, even a linguistic or abstract root

Here it clearly means:

• origin
• or source

So in this sentence, أصل is not about a grammar root directly; it means the thing’s origin.

In fully vocalized MSA, the sentence is:

• أصلُ البلاطةِ الخزفيةِ واضحٌ

Here is why:

• أصلُ = -u because it is the mubtadaʾ (subject/topic), so it is nominative
• البلاطةِ = -i because it is the second part of the iḍāfa, so it is genitive
• الخزفيةِ = -i because it is an adjective describing البلاطة, so it matches it in case
• واضحٌ = -un because it is the khabar (predicate), so it is nominative

So the case pattern is:

• nominative + genitive + genitive + nominative

A careful MSA pronunciation is:

• aṣlu al-bilāṭati al-khazafiyyati wāḍiḥun

A few sound notes:

• ṣ in أصل is an emphatic s
• ṭ in بلاطة is an emphatic t
• kh in الخزفية is like the sound in Scottish loch or German Bach
• ḍ in واضح is an emphatic d
• ḥ in واضح is a strong breathy h

If you are reading without full case endings, learners often simplify it roughly as:

• aṣl al-bilāṭa al-khazafiyya wāḍiḥ

But the fully correct textbook MSA form is the first one.

That ending is called tāʾ marbūṭa.

It usually marks a word as feminine.

So:

• بلاطة is a feminine noun
• خزفية is a feminine adjective agreeing with it

This is why the adjective has the feminine ending too. Arabic adjectives must match the nouns they describe in:

• gender
• number
• definiteness
• case

So because البلاطة is feminine singular definite, the adjective must also be feminine singular definite:

• الخزفية