| ˘ ˘ | pyrrhus, dibrach |
|---|---|
| ˘ ¯ | iamb |
| ¯ ˘ | trochee, choree |
| ¯ ¯ | spondee |
| ˘ ˘ ˘ | tribrach |
| ¯ ˘ ˘ | dactyl |
| ˘ ¯ ˘ | amphibrach |
| ˘ ˘ ¯ | anapaest, antidactylus |
| ˘ ¯ ¯ | bacchius |
| ¯ ¯ ˘ | antibacchius |
| ¯ ˘ ¯ | cretic, amphimacer |
| ¯ ¯ ¯ | molossus |
An iamb /ˈaɪæm/ or iambus is a metrical foot used in various types of poetry. Originally the term referred to one of the feet of the quantitative meter of classical Greek prosody: a short syllable followed by a long syllable (as in "delay"). This terminology was adopted in the description of accentual-syllabic verse in English, where it refers to a foot comprising an unstressed syllable followed by a stressed syllable (as in a-bove).
R. S. P. Beekes has suggested that the Ancient Greek: ἴαμβος iambos has a Pre-Greek origin. An old hypothesis is that the word is borrowed from Phrygian or Pelasgian, and literally means "Einschritt", i. e., "one-step", compare dithyramb and thriambus, but H. S. Versnel rejects this etymology and suggests instead a derivation from a cultic exclamation. The word may be related to Iambe, a Greek minor goddess of verse, especially scurrilous, ribald humour. In ancient Greece iambus was mainly satirical poetry, lampoons, which did not automatically imply a particular metrical type. Iambic metre took its name from being characteristic of iambi, not vice versa.
In accentual-syllabic verse an iamb is a foot that has the rhythmic pattern: