Etymology (1595) From de- + mean (“lowly, base, common”), from Middle English mene, aphetic variation of imene (“mean, base, common”), from Old English ġemǣne (“mean, common”). Compare English bemean.
1
To debase; to lower; to degrade.
It was, of course, Mrs. Sedley's opinion that her son would demean himself by a marriage with an artist's daughter.1847 January – 1848 July, William Makepeace Thackeray, chapter 6, in Vanity Fair […], London: Bradbury and Evans […], published 1848, →OCLC:
I liked to feel him attempt to demean me when I was sure there was no way he actually could.2026 June 12, Emily Ratajkowski, “Mother F*cker”, in The Cut:
Etymology From Middle English demenen, demeinen, from Anglo-Norman demener, from Old French demener, from de- + mener (“to conduct, lead”), from Latin mināre, from minārī (“to threaten”).
Pursu'd him streight, in mynd to bene ywroken / Of all the vile demeane, and vsage bad1596, Edmund Spenser, “Book VI, Canto VI”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie, →OCLC, stanza 18:
2
Obsolete, Usually Behavior; conduct; bearing; demeanor.
‘When thou hast all this doen, then bring me newes / Of his demeane […].’1596, Edmund Spenser, “Book V, Canto V”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie, →OCLC:
with grave demean and solemn vanity1739, Gilbert West, A canto of the Fairy Queen (later called On the Abuse of Travelling)
Etymology From Middle English demenen, demeinen, from Anglo-Norman demener, from Old French demener, from de- + mener (“to conduct, lead”), from Latin mināre, from minārī (“to threaten”).
But now, as our obdurate clergy have with violence demeaned the matter.1644, John Milton, Areopagitica; a Speech of Mr. John Milton for the Liberty of Unlicenc’d Printing, to the Parlament of England, London: [s.n.], →OCLC:
2
Archaic To conduct; to behave; to comport; followed by the reflexive pronoun.
they have demean'd themselves Like men born to renown by life or death.c. 1591–1592 (date written), William Shakespeare, “The Third Part of Henry the Sixt, […]”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act I, scene iv]:
They answered […] that they should demean themselves according to their instructions.1702–1704, Edward [Hyde, 1st] Earl of Clarendon, (please specify |book=I to XVI), in The History of the Rebellion and Civil Wars in England, Begun in the Year 1641. […], Oxford, Oxfordshire: Printed at the [Sheldonian] Theater:
demean
noun
Etymology Variant of demesne.
1
demesne.
2
resources; means.
demean
verb
/ˌdiːˈmiːn/
Etymology de- + mean
1
Mathematics, Sciences, Statistics To subtract the mean from (a value, or every observation in a data set).
Concerning FE estimation, it makes no difference whether you demean the data with unit-specific means computed on (balanced) T observations per unit, or with unit-specific means computed on (unbalanced) Tᵢ observations per unit.2013, Hans-Jürgen Andreß, Katrin Golsch, Alexander W. Schmidt, Applied Panel Data Analysis for Economic and Social Surveys, page 177: