I. ˈēch adjective
Etymology: Middle English ech, from Old English ǣlc; akin to Old High German iogilīh each; both from West Germanic * aiw- ever, always (whence Old English ā always) + * galīkaz having the same form, like (whence Old English gelīc like) — more at aye , like
Date: before 12th century
: being one of two or more distinct individuals having a similar relation and often constituting an aggregate
II. pronoun
Date: before 12th century
: each one
to each his own
III. adverb
Date: before 12th century
: to or for each : apiece
cost a dollar each