anacrustic
/ˌænəˈkrʌstɪk/Definitions
1. adjective
An anacrustic meter in poetry is one that uses an extra foot at the end of a line, often to create a sense of surprise or emphasis.
“The poet’s use of anacrustic meter in the final stanza added a powerful emotional impact to the poem.”
2. noun
A line in poetry that has an extra foot, typically at the end of the line.
“The anacrustic in the poem was a deliberate choice to create a sense of drama and tension.”