Eusocially

Part of speech: adverb

Definitions

1. Describing a form of social organization in which individuals work collectively for the benefit of the group and assist in caring for the offspring
2. A term that indicates a type of social structure where members of a community cooperate in raising young and supporting one another for mutual advantage
3. This concept refers to a highly organized social system in which individuals collaborate to rear young and enhance the survival of the group

Etymology: "Eusocially" is simply "eusocial" with the adverbial suffix "-ly" added, so its history is the history of "eusocial." That word was built from two Greek elements: "eu," meaning "well" or "good," and "social." The prefix signals a step beyond ordinary sociality, the highest tier of animal group living, in which colonies have overlapping generations, cooperative care of young, and a reproductive division of labour, as in ants, bees, wasps and termites. The adverb describes how members of such a community behave: they cooperate in raising young and supporting one another for mutual benefit. The "-ly" ending, from Old English "-lic," turns the adjective into a description of manner, so "eusocially" tells you the cooperation happens in that particular structured way.