Memoir

[mem-wahr, -wawr] /ˈmɛm wɑr, -wɔr/

noun
1.
a record of events written by a person having intimate knowledge of them and based on personal observation.
2.
Usually, memoirs.

3.
a biography or biographical sketch.
/ˈmɛmwɑː/
noun
1.
a biography or historical account, esp one based on personal knowledge
2.
an essay or monograph, as on a specialized topic
3.
(obsolete) a memorandum
n.

early 15c., “written record,” from Anglo-French memorie “note, memorandum, something written to be kept in mind” (early 15c., Old French memoire), from Latin memoria (see memory). Meaning “person’s written account of his life” is from 1670s.