ते प्राग्धातोः

Definition saṃjñā निपातसंज्ञा

Words referred as उपसर्ग or गति are attached before the verb root.

Word by word (padaccheda)

Term / subject ते prathamā · bahuvacanaIndeclinable प्राग् avyayaFrom / after धातोः pañcamī · ekavacana

Term / subject Prathamā (1st case): the term being defined, or the subject of the statement.
Indeclinable An avyaya such as च "and", वा "optionally", न "not".
From / after Pañcamī (5th case): "from X" or "after X"; in headings, often the limit of their scope.

Full reading

ते प्राग् धातोः

Pāṇini leaves out words that carry over from earlier sūtras. Expand to see the rule as a reader actually understands it.

Commentary

The particles called गति and उपसर्ग are to be employed before the verbal roots (i.e. to say that they are prefixes).
The word ते has been employed to include the term उपसर्ग also. The preceding examples all illustrate the application of this rule.

Śrīśa Chandra Vasu, The Ashtadhyayi of Panini (1897), via ashtadhyayi.com.