Dictionary.com
Thesaurus.com

Unalachtigo

American  
[oo-nuh-lahch-ti-goh] / ˌu nəˈlɑtʃ tɪˌgoʊ /

noun

plural

Unalachtigos,

plural

Unalachtigo
  1. a member of a North American Indian people, one of the Delaware group.

  2. the Eastern Algonquian language of the Unalachtigo, originally spoken in the middle Delaware Valley.