per-
#prefix
1. through; all over: perforation | pervade | percuss.
全面的に
completely; very: perfect | perturb.
完全に、非常に
to destruction; to ill effect: perdition | pervert.
破壊、害、病的影響、悪影響の方へ
2. #Chemistry having the maximum proportion of some element in combination: peroxide | permanganate | perchloric.
(化)過... e.g. peroxide: 過酸化物
ORIGIN
from Latin (see per).