bestead

vt. 帮助, 裨益

动词过去式:besteaded,bestead 过去分词:besteaded,bestead 现在分词:besteading 第三人称单数:besteads 

be.stead

v.tr.（及物动词）
be.stead.ed 或 be.stead be.stead.ing,be.steads
To be of service to; aid.
对…有帮助；帮助
To be of use to; avail.
对…有用；有益
adj.（形容词）
Having been placed; located.
处于…境地；位于

来源：
Probably be-
可能为 be-
stead [to help]
stead[帮助]
Adj., from Middle English bistad [placed]
形容词，源自 中古英语 bistad [放置]
bi- [be-]
bi- [前缀，表.全面地，彻底地.]
-stad ultimately from Old Norse staddr [placed] [past participle of] stedhja [to stop] from stadhr [place] * see st3-
-stad 最终源自 古斯堪的纳维亚语 staddr [放置] [] stedhja的过去分词 [停止] 源自 stadhr [地方] *参见 st3-