(obsolete) Any snake. / (chiefly Britain) A small venomous serpent of the genus Vipera / The puff adders, of Africa (genus Bitis). / (US, Canada) Any of several small nonvenomous snakes resembling adders

Someone who or something which performs arithmetic addition; a machine for adding numbers. / An electronic device that adds voltages, currents or frequencies. / Something which adds or increases.

Equal to or fulfilling some requirement.

A sufficient amount of; enough.

(obsolete) To equalize; to make adequate. / (obsolete) To equal.

(medicine) A state that is characterized by compulsive drug use or compulsive engagement in rewarding behavior, despite negative consequences. / The state of being addicted; devotion; inclination.

Said to wish a final farewell; goodbye.

A farewell, a goodbye; especially a fond farewell, or a lasting or permanent farewell.

(transitive) To make suitable; to make to correspond; to fit or suit / (transitive) To fit by alteration; to modify or remodel for a different purpose; to adjust

Adapted; fit; suited; suitable.