שָׂפָה sâphâh (H8193)

the lip (as a natural boundary); by implication, language; by analogy, a margin (of a vessel, water, cloth, etc.)

1) lip, language, speech, shore, bank, brink, brim, side, edge, border, binding 1a) lip (as body part) 1b) language 1c) edge, shore, bank (of cup, sea, river, etc)

or (in dual and plural) שֶׂפֶת; probably from סָפָה (H5595) or שָׁפָה (H8192) through the idea of termination (compare סוֹף (H5490));