副詞 athwart:

1. at right angles to the center line of a ship
2. at an oblique angle
   同義詞：obliquely, aslant

1. The ship was anchored athwart the harbour mouth.
   輪船橫著停泊在港口。
2. The ship was anchored athwart at the harbor mouth.
   輪船橫著停泊在港口里。

a.thwart

adv.（副詞）
From side to side; crosswise or transversely.
橫跨地：從一側到另一側；跨過或穿過地
So as to thwart, obstruct, or oppose; perversely.
以便對抗，阻礙，或反對地；任性地
prep.（介詞）
From one side to the other of; across:
穿過：從一側到另一側；穿過：
例句：
.the Stars that shoot athwart the Night.(Alexander Pope)
.劃破夜空的星星.(亞歷山大·波普)

Contrary to; against.
相反；相對
Nautical Across the course, line, or length of.
【航?！?/i> 橫越…的航道：穿過（船）的航向，航線或路線

來源：
Middle English
中古英語
a- [on] * see a- 2
a- [在…上] *參見 a-2
thwert [across] * see thwart
thwert [穿過] *參見 thwart