affix - a linguistic element added to a word to produce an inflected or derived form

attach - cause to be attached

plug in, connect - plug into an outlet; "Please plug in the toaster!"; "Connect the TV so we can watch the football game tonight"

penetrate - insert the penis into the vagina or anus of; "Did the molester penetrate the child?"

cannulate, cannulise, cannulize, canulate, intubate - introduce a cannule or tube into; "Cannulate the blood vessel in the neck"

input - enter (data or a program) into a computer

instil, instill - enter drop by drop; "instill medication into my eye"

embed, imbed, implant, plant, engraft - fix or set securely or deeply; "He planted a knee in the back of his opponent"; "The dentist implanted a tooth in the gum"

sandwich - insert or squeeze tightly between two people or objects; "She was sandwiched in her airplane seat between two fat men"

graft, transplant - place athe organ of a donor into the body of a recipient

affix - attach or become attached to a stem word; "grammatical morphemes afix to the stem"