base

1. 基础，来自希腊词bainein, 走，起步，台阶。词源同bat, 见acrobat, 高空走钢丝，杂技。 ven, 见advent, 来临。

2. 低，低级，来自拉丁词bassus, 低，底。词源同bass, 低音。abyss, 深渊。最终词源不详，可能同base, 基础，词义贬义。

base

base: There are two distinct words base in English. Base meaning ‘lower part, foundation’ [14] came either via Old French base or was a direct anglicization of Latin basis (acquired by English in its unaltered form at around the same time). The Latin word in its turn came from Greek básis, which meant originally ‘step’ and came ultimately from the Indo-European base *gwm-, from which English gets come; the semantic progression involved was ‘going, stepping’ to ‘that on which one walks or stands’ to ‘pedestal’.

The derivative basement [18] is Italian in origin (Italian basamento means ‘base of a column’), but probably reached English via early modern Dutch basement ‘foundation’. Base meaning ‘low’ [14] comes via Old French bas from medieval Latin bassus ‘short, low’. The ultimate antecedents of this are uncertain, although some have suggested a connection with básson, the comparative form of Greek bathús ‘deep’.

The adjective bass is historically the same word as base, but since the 16th century has been distinguished from it by spelling.
=> basis; bass

base (n.)

"bottom, foundation, pedestal," early 14c., from Old French bas "depth" (12c.), from Latin basis "foundation," from Greek basis "step, pedestal," from bainein "to step" (see come). The military sense is from 1860. The chemical sense (1810) was introduced in French 1754 by French chemist Guillaume-François Rouelle (1703-1770). Sporting sense of "starting point" ia from 1690s, also "destination of a runner" (1812). As a "safe" spot in a tag-like game, suggested from mid-15c. (as the name of the game later called prisoner's base).

base (adj.)

late 14c., "low, of little height," from Old French bas "low, lowly, mean," from Late Latin bassus "thick, stumpy, low" (used only as a cognomen in classical Latin, humilis being there the usual word for "low in stature or position"), possibly from Oscan, or Celtic, or related to Greek basson, comparative of bathys "deep." Figurative sense of "low in the moral scale" is first attested 1530s in English, earlier "servile" (1520s). Base metals (c. 1600) were worthless in contrast to noble or precious metals.

base (v.)

"to place on a foundation," 1841, from base (n.). Related: Based; basing.

1. The pizza base retains its crispness without becoming brittle.

比萨饼的饼底依然酥脆，也没有变得易碎。

2. Bank base rates of 7 per cent are too high.

7%的银行基准利率太高了。

3. The crime was so base that everyone wanted to hush it up.

这一罪行如此卑鄙无耻，大家都不想声张出去。

4. He was then taken by minibus to the military base.

他随后被一辆中巴车带到了军事基地。

5. Gunfire was heard at an army base close to the airport.

机场附近的军事基地传出了炮火声。