hundir

in, inner, inside, indoor, within, among, between

From PIE *enter "between, among"

IE *en- “in, inside”
Luwian anda “in, inside”
Hittite anta “in, inside”,
Latin intrare "to go into, enter"
Old French entrer “enter, go in; enter upon, assume; initiate”
Spanish entrar,
Italian entrare,
English enter, entrance, trance etc.