PAIR

par: The margin of Song of Solomon 4:2 (but not of the parallel Song of Solomon 6:6) reads, "which are all of them in pairs," while the text has, "whereof every one hath twins." The Hebrew math'imoth, is from the root, ta'am, "to be double," and is perhaps susceptible of either meaning. But the description is of sheep, and the margin gives no comprehensible figure, while the text points to the exceedingly sleek and healthy appearance. "Pairs" seems to result from confusing the figure with the thing figured--the teeth, where each upper is paired with the corresponding lower.

From the International Standard Bible Encyclopedia
Edited by James Orr, published in 1939 by Wm. B. Eerdmans Publishing Co.