Learn Farsi: لازم است که استاد کفش سفارشی را روی همانی بسازد که قالب اصلی است. - It is necessary that the master makes the bespoke shoe on the very one that is the original last.

hamâni is formed by the emphatic demonstrative hamân (that very same) plus the restrictive -i suffix. When paired with ke (that/which), the phrase hamâni ke functions as an independent pronoun meaning 'the very one that'. Instead of repeating the noun, it stands alone as the head of the relative clause.

Why is the verb besâzad placed between hamâni and ke?

In Farsi, when the head of a relative clause (like hamâni) is part of a prepositional phrase (like ruy-e hamâni), the main verb often comes before the relative pronoun ke. The sentence finishes the main thought ('make it on that very one') before attaching the description ('that is the original mold'). Saying ruy-e hamâni ke qâleb-e asli ast besâzad is also grammatically correct, but placing the relative clause at the very end flows much more naturally.

Why is the verb besâzad in the subjunctive mood?

The subjunctive form besâzad (makes/builds) is triggered by the impersonal phrase lâzem ast ke (it is necessary that) at the start of the sentence. Expressions of necessity, obligation, or desire in the main clause generally require the verb in the following dependent clause to take the subjunctive.

The English translation mentions a shoemaking 'last'. Which Farsi word is this, and what is its general meaning?