What is Surrender?

Legal Definition
In common law surrender is the term describing a situation where a tenant gives up possession of property held under a tenancy as a result of which the tenancy ends.
-- Wikipedia
Legal Definition
Estates, conveyancing. A yielding up of an estate for life or years to him who has an immediate estate in reversion or remainder, by which the lesser estate is merged in the greater by mutual agreement, Co. Litt. 337, b.

2. A surrender is of a nature directly opposite to a release; for, as the latter operates by the greater estate descending upon the less, the former is the falling of a less estate into a greater, by deed. A surrender immediately divests the estate of the surrenderer, and vests it in the surrenderee, even without the assent (q. v.) of the latter. Touchs. 300, 301.

3. The technical and proper words of this conveyance are, surrender and yield up; but any form of words; by which the intention. of the parties is sufficiently manifested, will operate as a surrender, Perk. ยง607; 1 Term Rep. 441; Com. Dig. Surrender, A.

4. The surrender may be express or implied. The latter is when an estate, incompatible with the existing estate, is accepted or the lessee takes a new lease of the same lands. 16 Johns. Rep. 28; 2 Wils. 26; 1 Barn. & A. 50; 2 Barn. & A. 119; 5 Taunt. 518, and see 6 East, R. 86; 9 Barn. & Cr. 288 7 Watts, R. 128. Vide, generally, Cruise, Dig. tit. 32, c. 7; Com. Dig. h. t.; Vin. Ab. h. t.; 4 Kent, Com. 102; Nels. Ab. h. t.; Rolle's Ab. h. t. 11 East, R. 317, n.

5. The deed or instrument by which a surrender is made, is also called a surrender. For the law of presumption of surrenders, see Math. on Pres. ch. 13, p. 236; Addis. on Contr. 658-661.
-- Bouviers Law Dictionary
Legal Definition
A yielding up of an estate tor life or years to him who has an immediate estote in reversion or remainder, by which the lesser estate is merged in the ,greater by mutual agreement. Co. Litt. 337b. And see Coe v. Hobby, 72 N. Y. 145, 28 Am. Rep. 120; Gluck v. Baltimore, 81 Md. 315, 32 Atl. 515, 48 Am. St. Rep. 515 ; Brewer v. National Union Bldg. Ass'n, 166 111. 221, 46 N. E. 752; Dayton v. Craik, 26 Minn. 133, 1 N. W. 813; Robertson v. Winslow, 99 Mo. App. 546, 72 S. W. 442. An assurance restoring or yielding up an estate, the operative verbs being "surrender and yield up." The term is usually applied to the giving up of a lease before the expiration of it Wharton. The giving up by buil of their principal into custody, in their own discharge. 1 Bur-rill, Pr. 394. Of charter. A corporation created by charter may give up or "surrender" its charter to the people, unless the charter was granted under a statute, imposing indefeasible duties on the bodies to which it applies. Grant, Corp. 45.
-- Black's Law Dictionary
Legal Definition
A yielding of the estate to the landlord, so that the leasehold interest becomes extinct by agreement. See 94 U. S. 382, 24 L. Ed. 173. The usual method of transfer of copyholds. See 2 Bl. Comm. 365.
-- Ballentine's Law Dictionary