'apiocrinitid' is a taxonomic formation originating in New Latin, built from the genus name 'Apiocrinites' with the English suffix '-id' meaning 'member of or relating to'.

The term was formed in modern scientific (taxonomic) usage by deriving from the genus name 'Apiocrinites' and adding the suffix '-id' to denote a member of that family, yielding 'apiocrinitid'.

Initially coined to denote taxa related to the genus 'Apiocrinites', the term has consistently been used to mean 'a member of the family Apiocrinitidae' and has retained that specialized meaning.