to cover something over: to overlay a surface, or to draw a covering close around a body
The picture behind this word is a covering worked over something until what was open is enclosed. It is not the everyday word for covering a thing up (כָּסָה), and it is not the ordinary word for pulling on a cloak (עָטָה). It is narrower and more deliberate: the covering is applied to the thing, so that whatever it covers stops being visible.
That is why one verb serves two settings that look unrelated at first. A craftsman lays blue stones over a panel of ivory until the ivory is encrusted with them. A woman on the road to Timnah draws a veil close about herself until no one can tell who she is. In both, something is cased in a covering, and what could be seen before cannot be seen now.
This concrete sense is the older one, and it is the one the neighbouring ancient languages confirm: their matching words mean to sheathe, to case, or to wrap something in a covering. The Hebrew word closest to it (עָטַף) travels the same road, meaning both to mantle something over and to languish.
Nuances
Whether the verb in Genesis 38:14 says that Tamar wrapped herself up or that she made herself over into someone else.
- majorityA reflexive of the covering sense: she wrapped or muffled herself, the pairing with the verb for covering forming a hendiadys that stresses total concealment.; G. J. Wenham, Genesis 16-50, WBC 2 (Dallas: Word, 1994), 366-68; V. P. Hamilton, The Book of Genesis: Chapters 18-50, NICOT (Grand Rapids: Eerdmans, 1995), 442-44; N. M. Sarna, Genesis, JPS Torah Commentary (Philadelphia: JPS, 1989), ad loc.
- minorityAn act of self-presentation, "thus disguised," adorning or altering her appearance rather than merely wrapping, in line with the Septuagint, Vulgate and Targum Onqelos.; E. A. Speiser, Genesis, AB 1 (Garden City: Doubleday, 1964), 297-301