IPA: //haɪpərˈkætəˌlɛksɪs//
KK: /haɪpərˈkætəˌlɛksɪs/
The addition of one or two extra syllables at the end of a line of poetry, which goes beyond the normal structure of the verse.
The poet used hypercatalexis to create a unique rhythm in her poem.
Hypercatalexis is formed from "hyper-" (meaning over or beyond) and "catalexis" (from Greek "katalexis", meaning completion or a finishing). The term refers to a metrical term in poetry that describes a line that has an extra syllable beyond the expected count, thus going beyond the normal structure.
Think of 'hyper-' meaning 'over' and 'catalexis' meaning 'completion' — this helps you remember that hypercatalexis refers to a line in poetry that goes beyond the usual completion.
No commonly confused words.