Webster's Revised Unabridged Dictionary · 1913

Mid

Mid (mid) , a.

[AS. midd; akin to OS. middi, D. mid (in comp.), OHG. mitti, Icel. mier, Goth. midjis, L. medius, Gr. me`sos, Skr. madhya. r271. Cf. Amid, Middle, Midst, Mean, Mediate, Meridian, Mizzen, Moiety.]

1.
Denoting the middle part; as, in mid ocean.
No more the mounting larks, while Daphne sings,b Shall list'ning in mid air suspend their wings. — Pope
2.
Occupying a middle position; middle; as, the mid finger; the mid hour of night.
3.
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, ā (āle), e (ell), ō (ōld). See Guide to Pronunciation, §§ 10, 11.

Mid , n.

Middle.
About the mid of night come to my tent. — Shakespeare

Mid , prep.

See Amid.