1) Both, at the beginning 2) Both, at the start 3) Both, for openers 4) Both, to begin with 5) Dexterous beginner 6) Dexterous start 7) Dextrous beginner 8) Dextrous beginning 9) Dextrous opening 10) Dextrous start 11) Dextrous starter 12) Flexible prefix 13) Inclusive prefix 14) It comes before dextrous 
Ambianum (Amiens, France)