habendumEtymologyFrom Latin, neuter singular gerundive of habeo (“have", "own", "possess”): "that which must or should be possessed".habendum means the part of a deed that formally defines the extent of ownership or tenancy granted. Lexicurio rates it Sui generis — a strength score of 88 out of 100.nounThe part of a deed that formally defines the extent of ownership or tenancy granted.