LOCUTION
saying, expression, locution
(noun) a word or phrase that particular people use in particular situations; “pardon the expression”
Source: WordNet® 3.1
Etymology
Noun
locution (plural locutions)
A phrase or expression connected to an individual or a group of individuals through repeated usage.
The use of a word or phrase in an unusual or specialized way.
(religion) A supernatural revelation where a religious figure, statue or icon speaks, usually to a saint.
Source: Wiktionary
Lo*cu"tion, n. Etym: [L. locutio, fr. loqui to speak: cf. F.
locution. ]
Definition: Speech or discourse; a phrase; a form or mode of expression. "
Stumbling locutions." G. Eliot.
I hate these figures in locution, These about phrases forced by
ceremony. Marston.
Source: Webster’s Unabridged Dictionary 1913 Edition