Pronunciation: [θˈɛnad] (IPA)
Correct spelling for the English word "thenad" is [θˈɛnad], [θˈɛnad], [θ_ˈɛ_n_a_d] (IPA phonetic alphabet).
Toward the outer side of the palm of the hand.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.