allying

transitive verb allied, allying

1. to unite or associate for a specific purpose, as families by marriage, nations by treaty, or companies by agreement: generally used reflexively or in the passive
2. to relate by similarity of structure, certain qualities, etc.: usually in the passive: the onion is allied to the lily

intransitive verb

noun pl. allies

1. a country, person, or group joined with another or others for a common purpose
2. a plant, animal, or thing closely related in structure, etc. to another
3. an associate; helper; auxiliary