A housewarming is a party given when you move into a new home. Throw a housewarming, a housewarming gift, invited to the housewarming.
The name is literal: guests once brought firewood and lit fires in every room to warm and bless a new house. The custom of bringing something for the home survives even where the fires do not, which is why salt and bread are traditional gifts.
1nounhousewarmingA party given when you move into a new home.
“They invited all their friends to a housewarming after moving into the new flat.”
housewarming is a party.
House plus warming, from the practice of guests bringing fuel to warm a new house.
From house + warming.
Etymology from Wiktionary, CC BY-SA