overcrowd

verbs

cause to crowd together too much
"The students overcrowded the cafeteria"
is derived from
is a type of (narrower)
cause to herd, drive, or crowd together
"We herded the children into a spare classroom"
crowd together too much
is derived from
is a type of (narrower)
to gather together in large numbers
"men in straw boaters and waxed mustaches crowded the verandah"