Below
来自Big Physics
late Middle English (as an adverb): from be- ‘by’ + the adjective low1. Not common until the 16th century, the word developed a prepositional use and was frequent in Shakespeare.
wiktionary
From Middle English bilooghe, equivalent to be- + low. Compare also earlier Middle English alogh, alow, aloȝ, alowe(“below”) and benethen(“beneath”).
etymonline
below (adv.)
"in a lower position," early 14c., biloogh, from be- "by, about" + logh, lou, lowe "low" (see low (adj.)). Apparently a variant of earlier a-lowe (influenced by other adverbs in be-; see before), the parallel form to an-high (now on high).
Beneath was the usual word; below was very rare in Middle English and gained currency only in 16c. It is frequent in Shakespeare. As a preposition from 1570s. In nautical use, "off-duty," in contradistinction to "on deck." Meaning "inferior in rank or dignity" is from c. 1600. According to Fowler, below is the opposite of above and concerns difference of level and suggests comparison of independent things. Under is the opposite of over and is concerned with superposition and subjection and suggests some interrelation.
