One of the mysteries of the English language finally explained.
Of a person: easy to be acquainted with; disposed to friendship; affable, amiable; (also) capable of being made an acquaintance. Occasionally †(of a thing): able to be known or proved (obsolete).
Late Middle English; earliest use found in Geoffrey Chaucer (c1340–1400), poet and administrator. From acquaint + -able, originally after Middle French acointable, accointable (of a person) easy to be acquainted with, affable, amiable. In later (20th-cent.) use apparently independently re-formed, although the word is found in dictionaries in the 19th cent.
In this article we explore how to impress employers with a spot-on CV.