Tribe is the opposite of Loose. Loose is the opposite of Bind. Band is etymologically related to Bind. 
Technique is related to Chop. Chop is related to Pork. 
Tribe <--Antonym--> Loose <--Antonym--> Bind <--EtymologicallyRelatedTo-- Band 
Technique <--RelatedTo--> Chop <--RelatedTo--> Pork 