12 letters · 16 points in Scrabble
originPIE word *ḱóm Borrowed from Latin cōnsociātiōnem, the accusative singular of cōnsociātiō (“alliance; association, union”), from cōnsociō (“to make common; to associate; to connect, join (in), unite; to agree with; to share”) + -tiō (suffix forming nouns relating to actions or the results of actions). Cōnsociō is derived from con- (prefix indicating a being or bringing together of several things)…
Etymology from Wiktionary, CC BY-SA 3.0