A type of verse termed by George Puttenham in 1589 "maimed" because it is missing a syllable in the last foot. An acatalectic verse is complete. A hypercatalectic line has an extra syllable. The three types can be seen below in the last foot of this tercet:

Hamlet cries his mother's tainted.
Gertrude nearly falls down, faint.
Hamlet's father swears, unsaintly, he.