ציטירנדיקער פּירוש אויף שמות 1:19

כעת חיה, she would give birth at the appropriate time. The word appears in this context in Michah 5,2 כעת יולדה בן,”until she who is to bear has given birth.” It is also found describing the state of Jewish mothers giving birth as being equivalent to that of midwives. (Exodus 1,19)

Wild beasts came upon them, because they had enslaved the Israelites who were compared to animals, as Rashi explained on the verse for they are like animals (Exodus 1:19). And in all the land of Goshen there were no wild beasts, for an animal does not harm its own kind.

"And animals of the (chayeto) earth:" Animals that eat meat and prey are called chayot due to their liveliness (chiyutam) and their strength, [which] is how [liveliness] is understood in (Exodus 1:19), "they are lively." And they are called"chayot of the earth" and "chayot of the field" (Genesis 2:20). And the word, chayeto, with the addition of a [letter,] vav [at the end of the word which does nonetheless not change its meaning] is like "beno (the son of) Be'or" (Numbers 24:3), and "lemayano (to a spring of) water" (Psalms (114:8). And the word, chayeto, is only found in verse [and not prose], and so [too] beno and mayano. And it appears that this is an Aramaic mode of expression [for] the son of Be'or, as in (Song of Songs 3:7), Behold, the bed of Shlomo (mitato shel Shlomo); in the manner of (Daniel 2:20) "the name of God." And even though water (mayim) [in Psalms 114] is not singular, and earth [in our verse] is not masculine, the additional vav [which usually indicates masculine gender and first person] remains due to the poetic style, even when it would have been fitting to change it according to [the word's] standard grammatical form.