94 The “mixed multitude” (עֵרֶב רַב, ’erev rav) refers to a great “swarm” (see a possible cognate in 8:21[17]) of folk who joined the Israelites, people who were impressed by the defeat of Egypt, who came to faith, or who just wanted to escape Egypt (maybe slaves or descendants of the Hyksos). The expression prepares for later references to riffraff who came along.
95 Heb “and very much cattle.”

In other versions

A mixed multitude also went up with them, and very much livestock, both flocks and herds.

Many other people went up with them, and also large droves of livestock, both flocks and herds.

A mixed crowd also went up with them, along with a huge number of livestock, both flocks and herds.

A rabble of non-Israelites went with them, along with great flocks and herds of livestock.

And also a mixed multitude went up with them and sheep and goats and cattle, very numerous livestock.

And a mixed multitude went up also with them; and flocks, and herds, even very much cattle.

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