Rupakaya
Rupakaya (Skt. rūpakāya; Tib. གཟུགས་སྐུ་, zukku; Wyl. gzugs sku) refers to the two 'form kayas' of a buddha: nirmanakaya and sambhogakaya. It is said that the rupakaya arises from the accumulation of merit and the dharmakaya from the accumulation of wisdom.