shoal

n. 浅滩；鱼群；潜在危险

vi. 变浅

vt. 使变浅；驶入

adj. 浅的

中文词源

shoal 浅滩，沙洲

来自古英语 sceald,浅的，词源同 shallow.

shoal 鱼群

来自古英语 scolu,鱼群，词源同 school,鱼群，一群。

shoal: shoal: English has two distinct words shoal. ‘Shallow area’ [16] is descended from the Old English adjective sceald ‘shallow’, which in turn came from prehistoric Germanic *skaldaz. (English shallow [15] is related, although it is not clear precisely how.) Shoal of fish [16] is simply a reborrowing of Middle Dutch schōle, which had earlier been taken over as school.
=> school
shoal (n.1): "place of shallow water," c. 1300, from Old English schealde (adj.), from sceald "shallow," from Proto-Germanic *skala- (cognates: Swedish skäll "thin;" Low German schol, Frisian skol "not deep"), of uncertain origin. The terminal -d was dropped 16c.
shoal (n.2): "large number" (especially of fish), 1570s, apparently identical with Old English scolu "band, troop, crowd of fish" (see school (n.2)); but perhaps rather a 16c. adoption of cognate Middle Dutch schole.
shoal (v.): "assemble in a multitude," c. 1600, from shoal (n.2). Related: Shoaled; shoaling.

1. shallow => *shal- => shoal.2. school => shoal.

1. He was transferred to Shoal Creek Mental Institution for an indefinite period.: 他被转到了肖尔溪精神病院，要在那里无限期地呆下去。