IPA: /ˌkætəˈlɛktɪk/
KK: /kætəˈlɛktɪk/
Describing a type of verse that is missing one or more syllables at the end of a line, often resulting in an incomplete foot.
The poem was written in a catalectic form, leaving the last syllable of each line unspoken.
Catalectic is formed from "cata-" (from Greek "kata", meaning down or against) and "lectus" (from Latin, meaning to gather or choose). The term refers to a line of verse that is incomplete or lacking a syllable, thus it is a gathering of syllables that is 'down' or 'against' the expected full form.
Think of 'cata-' meaning 'down' and 'lectus' meaning 'gathering' — a catalectic line is one that is 'down' a syllable from what is expected.