IPA: //əbˈtɛktɪd//
KK: /ɑbˈtɛktɪd/
Having a hard outer covering or shell that protects something inside.
The obtected pupa is safe from predators until it emerges as an adult fly.
This word originates from Latin 'obtectus', meaning covered or concealed. The root 'ob-' (meaning over or against) combined with 'tectus' (from 'tegere', meaning to cover) indicates something that is covered or hidden.
Think of something that is 'covered' ('ob-' means over and 'tectus' means to cover) — that's why 'obtected' refers to something that is concealed.
No commonly confused words.