Lexical Definition

‎πρωτοκαθεδρία‎ prōtokathedría (pro-tok-ath-ed-ree'-ah) seat of honor ^G:N-F
from ‎πρῶτος‎ and ‎καθέδρα‎

chief (highest, uppermost) seat.

• a sitting first (in the front row), i.e. preeminence in council

Abbott-Smith

*† πρωτοκαθεδρία, -ας, ἡ (< πρῶιος, καθέδρα),
the chief seat: Mt 23:6, Mk 12:39 (v. Swete, in l.), Lk 11:43 20:46.†

Abbott-Smith References

Liddell-Scott-Jones

πρωτοκαθεδρία-καθεδρία, ἡ,

the first seat in a public place, [NT]

_{LSJ Scripture Refs: Matt.23.6}