ἐβάθυνεν [1 verse](verb 3rd sg aor ind act) "Deep" is from bathyo, which means to "deepen", "hollow out", and metaph., "go deeply into a subject".  The "deep" here is also a verb. It means to "deepen", "hollow out", and metaph., "go deeply into a subject."  - "Deep" is from bathyo, which means to "deepen", "hollow out", and metaph., "go deeply into a subject".  The "deep" here is also a verb. It means to "deepen", "hollow out", and metaph., "go deeply into a subject."