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o·ver·lap

(ō′vər-lăp)

v. o·ver·lapped, o·ver·lap·ping, o·ver·laps

v.tr.

1. To lie or extend over and cover part of.

2. To have an area or range in common with.

v.intr.

1. To lie over and partly cover something.

2. To correspond in character or function: Their duties overlap.

3. Mathematics To have one or more elements in common. Used of sets.

n. (ōvər-lăp′)

1. A part or portion that overlaps or is overlapped.

2. An instance of overlapping.

Indo-European & Semitic Roots Appendices

Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:

Indo-European Roots

Semitic Roots

The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.

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