The meaning of ETYMOLOGY is the history of a linguistic form (such as a word) shown by tracing its development since its earliest recorded occurrence in the language where it is found, by tracing its transmission from one language to another, by analyzing it into its component parts, by identifying its cognates in other languages, or by tracing.

Posh. Definition: elegant, fashionable. The notion that posh is an acronym for “port out, starboard home” is one of the more enduring myths of English etymology, resistant to common sense, probability, and copious amounts of research. This phrase is not the origin of posh. "Port out, starboard home” is thought to refer to the desirability.