From nuwd; motion (of the lips in speech) -- moving.
see HEBREW nuwd
H5205. nid
נִיד noun masculine:(see below) quivering motion of lips; — only construct ׳נ שְׂפָתַי Job 16:5 the motion of my lips (in expressing sympathy). — ᵑ0 makes subject of יחשׂך, but read probably אחשׂך, see חשׂך.
נִידָה see נִדָּה below נדד.