Anceps (Latin for "two-headed") is a syllable position in Latin meter that can be filled by either a long or a short syllable; in dactylic hexameter, the meter of the Aeneid, the final syllable of every line is anceps, so it scans correctly no matter its natural length.
Anceps literally means "two-headed" or "undecided" in Latin, and that's exactly what it describes. It's a spot in a metrical line where the syllable can be either long or short and the meter still works. You don't have to figure out the syllable's natural quantity, because the position accepts both.
For AP Latin, the place you'll meet anceps is the very last syllable of a dactylic hexameter line. Every line of the Aeneid ends in a final foot of two syllables, where the first is long and the second is anceps. That's why the last foot is sometimes written as a spondee even when the final syllable is naturally short. When you scan a line, you can mark that final syllable with an X (or just call it long by convention) and move on. The hard scansion work happens in the first four feet; the line's ending takes care of itself.
Anceps lives in Topic 6.14 (Vergil Additional Aeneid: Epic Elements) and supports learning objective AP Latin 6.14.A, which asks you to describe features of meter in Latin poetry. The essential knowledge behind it is simple and absolute. All epic poetry is composed in dactylic hexameter. Knowing that the final syllable of every hexameter line is anceps is one of the small rules that makes scansion doable under time pressure. It tells you the last foot is never the problem, so you can spend your energy on the first four feet, where elision and syllable quantity actually require thought. Understanding anceps also shows you grasp how Latin meter works as a system of positions, not just memorized patterns.
Keep studying AP Latin Unit 6
Dactylic Hexameter (Unit 6)
Anceps only makes sense inside hexameter's rules. Every line of the Aeneid has six feet, and the sixth foot always ends with an anceps syllable. Think of anceps as hexameter's built-in shortcut, since the line's last syllable counts as long whether it is or not.
Dactyl (Unit 6)
A dactyl is one long syllable followed by two shorts. Dactyls and spondees fill the first five feet of a hexameter line, but the sixth foot is different. It's always two syllables, long plus anceps, so a full dactyl never appears there.
Elision (Unit 6)
Elision and anceps are the two scansion rules that change how you count syllables. Elision drops a syllable when a vowel ending bumps into a vowel beginning. Anceps lets a syllable's length flex. You'll usually apply both when scanning a single Vergil line.
Metrical Foot (Unit 6)
Anceps is a property of a position within a foot, not of a word. The same syllable that's naturally short elsewhere in a line counts as long when it lands in the anceps slot at line's end, which shows that meter is about where a syllable sits, not just what it is.
Anceps shows up when the exam deals with scansion of dactylic hexameter. Released short-answer questions from 2017, 2018, 2019, and 2021 have used the term, typically in connection with lines of poetry printed for metrical analysis. In practice, what you need to do is scan the first four feet of a hexameter line accurately, marking longs, shorts, and elisions. The anceps rule is your safety net for the line's ending. If a question asks you to describe features of the meter (LO 6.14.A), being able to say that the final syllable of every hexameter line is anceps is exactly the kind of precise, technical answer that earns credit. You won't be asked to write an essay about anceps, but you will be expected to apply it correctly every time you scan.
Both terms come up during scansion, but they do opposite jobs. Elision removes a syllable from the count entirely, like when "atque" before a vowel loses its final -e. Anceps doesn't remove anything. The syllable is still there and still pronounced; the meter just accepts it as either long or short. Elision changes how many syllables you scan. Anceps changes how flexibly you measure one of them.
Anceps means "two-headed" and describes a metrical position that can be filled by either a long or a short syllable.
The final syllable of every line of dactylic hexameter is anceps, so it always scans correctly regardless of its natural length.
Because of the anceps rule, the sixth foot of a hexameter line is conventionally treated as long-long, even when the last syllable is naturally short.
Anceps supports learning objective AP Latin 6.14.A, which asks you to describe features of meter in Latin poetry.
When scanning Vergil, focus your effort on the first four feet; the anceps rule means the line's ending is never in doubt.
Anceps and elision are different tools. Elision deletes a syllable from the count, while anceps makes one syllable's length flexible.
Anceps is a syllable position in Latin meter that can be filled by either a long or a short syllable. In dactylic hexameter, the meter of the entire Aeneid, the final syllable of every line is anceps.
No. The last syllable is anceps, meaning it can be naturally long or short and the line still scans. By convention it's often marked long or with an X, but its actual quantity doesn't matter.
Elision drops a syllable from the count when a word ending in a vowel (or vowel plus m) meets a word starting with a vowel or h. Anceps keeps the syllable but lets it count as long or short. Elision affects how many syllables you scan; anceps affects how you measure one.
Yes. Scansion of dactylic hexameter is a tested skill under learning objective AP Latin 6.14.A, and the term anceps has appeared in released short-answer questions, including in 2017, 2018, 2019, and 2021.
No. A spondee is a complete foot of two long syllables. Anceps describes a single flexible syllable position. The sixth foot of a hexameter line often looks like a spondee, but only because its second syllable is anceps and counts as long by convention.