前缀 supra- = above, over, beyond, before 超,前,在...上
word-forming element meaning "above, over, beyond, before," from Latin supra "above, over, before, beyond, on the upper side," in supera (parte), literally "on the upper (side)," from old fem. ablative singular of superus (adj.) "above," related to super "above, over" (see super-). In English interchangeable with, but somewhat more technical than, super-. Rare as a prefix in Latin, more common in Medieval Latin, in English chiefly scientific or technical.