thrash (someone) within an inch of (their) life

Translations
избить (кого-то) до полусмерти
The bully threatened to thrash him within an inch of his life.
Хулиган угрожал избить его до полусмерти.
Definitions
To beat or punish someone severely, often to the point of causing extreme pain or distress, but not to the point of death.
Words
thrash

verb
избить
someone

pronoun
кого-нибудь
within

preposition
в пределах
an

article or possessive pronoun
одного
inch

noun
дюйма
of

preposition
от
their

pronoun
их
life

noun
жизни