dose

来自词根don, 给予，词源同data, donate. 引申词义一剂。

dose

dose: [15] A dose is literally ‘that which is given to one’ – etymologically and semantically, it is a parallel formation to donation. It comes via French dose and late Latin dosis from Greek dósis, a derivative of the verb didónai ‘give’ (which is related to English date, donate, etc). It originally meant simply ‘giving, gift’, but was used by Greek physicians such as Galen for ‘portion of medicine administered’, and it is that application that has proved most durable. The modern slang sense ‘venereal infection’ dates from just before World War I.
=> date, donate

dose (n.)

early 15c., "the giving of medicine (in a specified amount or at a stated time)," from Middle French dose (15c.) or directly from Late Latin dosis, from Greek dosis "a portion prescribed," literally "a giving," used by Galen and other Greek physicians to mean an amount of medicine, from stem of didonai "to give" (see date (n.1)). Slang meaning "venereal disease" is from 1914.

dose (v.)

1650s, from dose (n.). Related: Dosed; dosing.

1. The West is getting a heavy dose of snow and rain today.

西部今天将迎来一场大的雨夹雪。

2. A good dose of tonic will help you to pick up.

一剂好的补品将有助于身体康复。

3. Someone had fed him a lethal dose of cyanide.

有人给他下了致命剂量的氰化物。

4. The recommended daily dose is 12 to 24 grams.

建议每天的服用剂量为12到24克。

5. She was born with a healthy dose of self-confidence.

她天生就充满自信。