Mark 12:39

καὶ πρωτοκαθεδρίας ἐν ταῖς συναγωγαῖς, καὶ πρωτοκλισίας ἐν τοῖς δείπνοις·

RBT Translation:

καθεδρίας kathedria - Seat of Authority

And first cathedras within the Assemblies and first reclining couches within the Evening Meals,

Evening meal

Julia Smith Literal 1876 Translation:
And first seats in synagogues, and first place at tables in first meals:

LITV Translation:
and chief seats in the synagogues, and chief couches in the dinners,