scavenger

• n.スカベンジャー; スカベンジャー; [添加物]除去剤; スカベンジャー

中英語のscawageour、ロンドンの収入役、特に外国製品の税金を徴収する人、アングロ?フランス語のscawage、税、義務から、原語ゲルマン語*skau、見る、気づく、調べる、PIE*skeue、見る、気づくから、語源的にはshow、見る、調べる、と同じ。PIE*skeueから、税金や手数料を徴収すると同時に、通りを掃除すること、語源 スカベンジャー、ボロ拾い、本来の意味は次第に消え、その派生語が主な意味となった。-メッセンジャー、人、語源はメッセンジャー、乗客と同じ。

scavenger

scavenger: [15] A scavenger was originally a scavager – the extra n is the same as that intruded into messenger, passenger, etc. This was acquired from Anglo-Norman scawager, and it started life as a term for an official whose job was to collect taxes levied on foreign merchants. Etymologically it denoted ‘inspector’, for it was derived from the verb escauwer ‘inspect’, which was borrowed from Flemish scauwen ‘look at’, a relative of English show.

By the 16th century the scavenger had begun to come down in the world, first to a ‘street-cleaner’ and finally to ‘one who gathers or lives on what others have thrown away’. The verb scavenge was derived from it in the 17th century.
=> show

scavenger (n.)

1540s, originally "person hired to remove refuse from streets," from Middle English scawageour (late 14c.), London official in charge of collecting tax on goods sold by foreign merchants, from Anglo-French scawager, from scawage "toll or duty on goods offered for sale in one's precinct" (c. 1400), from Old North French escauwage "inspection," from a Germanic source (compare Old High German scouwon, Old English sceawian "to look at, inspect;" see show (v.)).

It has come to be regarded as an agent noun in -er, but the verb is a late back-formation from the noun. With intrusive -n- (c. 1500) as in harbinger, passenger, messenger. Extended to animals 1590s. Scavenger hunt is attested from 1937.

1. He 's just fit for a job as scavenger .

彼は掃除夫にしかならない。

2.He is not a scavenger nor just a moving appitite as some sharks are.

それは腐食動物ではなく、サメのように泳ぎ回って食欲を満たすことしか知らない。dd>

-老人と海

3.Mulberry red pigment hence was a good kind of natural radical scavenger .

桑果実赤色素は天然ラジカル除去剤として優れている。

4.He be just fit for a job as scavenger .

彼はちょうど清掃夫の職に就いている。

5. Glutathione peroxidase ( GSH - Px ) acts as a free radical scavenger .

グルタチオンペルオキシダーゼは、生体体内のラジカル除去剤である.