Tafsiran Amsal 30:17: Rashi

the mother’s wrinkles Heb. ליקהת, the wrinkles that gather (נקהין) in his mother’s face, from the expression of (Gen. 49:10): “a gathering (יקהת) of peoples.” The “yud” is a radical, like יפעת, splendor; (יעלת חן) (Prov. 5:19), a graceful mountain goat.

pick it out Heb. יקרוה, an expression of (Num. 16: 14): “will you pick (תנקר)” (Ex. 33:22) “In the cleft (בנקרת) of the rock.” Forer in French, to bore through. Let the raven, which is cruel to its young, come and pick it and not eat it and not derive benefit from it, and let the eagle, which is compassionate with its young, come and eat it and derive benefit from it. The raven is cruel, as it is stated (Ps. 147:9): “to the young ravens which cry,” and the eagle is compassionate, as it is stated (Deut. 32: 11): “It bears its young on its wing.”