What is the meaning of Bitte?

Obsolete form of bit.

bitt, bollard, mooring post

alternative spelling of bite; cock, dick, prick

please, if you please (used to make a polite request or affirm an offer)

you're welcome (acknowledgement of thanks)

excuse me, sorry (request to repeat information)

here you are (when handing something over to someone)

OK then, well then, all right (indication of mock acquiescence to someone's apparent demanding attitude)

inflection of bitten:

1. first-person singular present
2. first/third-person singular subjunctive I
3. singular imperative

first-person singular present

first/third-person singular subjunctive I

singular imperative

plural of bitta

A flexible container for water or wine; a waterskin or wineskin.

The uterus or womb (as a "container" for the fetus)

locative singular of bit

Source: wiktionary.org