erst

ennen puhekieltä first First.
puhekieltä First of all, before (some other specified thing).
1567, Arthur Golding, Ovids Metamorphoses'', book 2, line 691:

Consider what I erst have been and what thou seest me now:

Thenne he sente the varlet ageyne and bad hym telle Kyng Mark that I wille come as soone as I am hole / for erste I maye doo hym noo good / Thenne Kynge Mark hadde his ansuer / There with came Elyas and badde the Kynge yelde vp the castel

(ux)