词根词缀：dat-, dos-, dot-, dow-, don-, dit-

【来源及含义】Greek + Latin: dare, to give, a giving, given; a gift; to grant, to offer

【相关词根词缀】 Another term used for medical dosage can be seen at this posology page.

【同源单词】a datu, a die datus, air dose, anecdote, antidotal therapy, antidote

词根词缀：lethal-, -lethal, -lethally; lethi-, letho-, leth-

【来源及含义】Latin: death, deadly; fatal, lifeless; kill, killing; die, dying; mortal, mortality; destructive

【相关词根词缀】 Related "death, dead; kill" units: -cide; mort-; neci-; necro-; phono-; thanato-.

【同源单词】hyperlethal, lethal, lethal chamber, lethal dose, lethal injection, lethal mutation