From The Collaborative International Dictionary of English v.0.48 [gcide]:
Mid \Mid\, n.
Middle. [Obs.]
[1913 Webster]
About the mid of night come to my tent. --Shak.
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From The Collaborative International Dictionary of English v.0.48 [gcide]:
Mid \Mid\, prep.
See Amid.
[1913 Webster]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Mid \Mid\ (m[i^]d), a. [Compar. wanting; superl. Midmost.]
[AS. midd; akin to OS. middi, D. mid (in comp.), OHG. mitti,
Icel. mi[eth]r, Goth. midjis, L. medius, Gr. me`sos, Skr.
madhya. [root]271. Cf. Amid, Middle, Midst, Mean,
Mediate, Meridian, Mizzen, Moiety.]
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1. Denoting the middle part; as, in mid ocean.
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No more the mounting larks, while Daphne sings,
Shall list'ning in mid air suspend their wings.
--Pope.
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2. Occupying a middle position; middle; as, the mid finger;
the mid hour of night.
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3. (Phon.) Made with a somewhat elevated position of some
certain part of the tongue, in relation to the palate;
midway between the high and the low; -- said of certain
vowel sounds; as, [=a] ([=a]le), [e^] ([e^]ll), [=o]
([=o]ld). See Guide to Pronunciation, [sect][sect] 10, 11.
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Note: Mid is much used as a prefix, or combining form,
denoting the middle or middle part of a thing; as,
mid-air, mid-channel, mid-age, midday, midland, etc.
Also, specifically, in geometry, to denote a circle
inscribed in a triangle (a midcircle), or relation to
such a circle; as, mid-center, midradius.
[1913 Webster]
From WordNet (r) 3.0 (2006) [wn]:
mid
adj 1: used in combination to denote the middle; "midmorning";
"midsummer"; "in mid-1958"; "a mid-June wedding"