Rashi on Genesis 30:38/רש"י על בראשית ל׳:ל״ח

1ויצג AND HE SET — In the Targum it is rendered by ודעיץ which signifies in the Aramaic language sticking in and inserting. It occurs many times in the Talmud: (Shabbat 50b) “if he stuck it in (דצה) and pulled it out”; (Chullin 93b) “he stuck (דץ) something into it”, where דצה is the same as דעצה, being really a contracted form of it.

2ברהטים IN THE GUTTERS — in the currents (מרוצות) of water running in the trenches made in the ground to water the sheep there (רהט is the Aramaic of רוץ).

3אשר תבאנה WHERE THE FLOCKS COME TO DRINK etc. — In the currents whither the sheep come to drink, there did he set the rods in front of the sheep.

4ויחמנה AND THEY CONCEIVED — The female animal saw the rods, it was startled at the sight of them and recoiled; its mate then pairing with it, it afterwards gave birth to young marked similar to the rods (Genesis Rabbah 73:10).