hypothecation

is likely misspelled.

has no English definition.

As a noun hypothecation

is the use of property, or an existing mortgage, as security for a loan, etc.

As nouns the difference between taxonomy and hypothecation

is that taxonomy is the science or the technique used to make a classification while hypothecation is the use of property, or an existing mortgage, as security for a loan, etc or hypothecation can be (british) a tax levied for a specific expenditure.

As nouns the difference between hypothecation and hypothecary

is that hypothecation is the use of property, or an existing mortgage, as security for a loan, etc or hypothecation can be (british) a tax levied for a specific expenditure while hypothecary is (legal) the holder of a hypothec, or pledge.

As an adjective hypothecary is

of, pertaining to, or arising from hypothecation, the pledging of property or mortgage as surety for a loan.