Lexical Definition

‎προμαρτύρομαι‎ promartýromai (prom-ar-too'-rom-ahee) to predict ^G:V
from ‎πρό‎ and ‎μαρτύρομαι‎

testify beforehand.

• to be a witness in advance i.e. predict

Abbott-Smith

*† προ-μαρτύρομαι,
to protest beforehand (cf. μαρτύρομαι, and V. Hort, in l.): I Pe 1:11 (elsewhere only in Theod. Met., xiv/AD.).†

Abbott-Smith References

Liddell-Scott-Jones

προμαρτύρομαι [ῡ],

bear witness to beforehand, τὰ εἰς Χριστὸν παθήματα [NT]

_{LSJ Scripture Refs: 1Pet.1.11}