Vincent's NT Word Studies
16. Lovest (agapav). Again the colder word, but more than these is omitted.I love (filw). Peter reiterates his former word expressive of personal affection.
Feed (poimaine). A different word: tend, as Rev. See on 1 Pet. v. 2. Sheep (probata). Some of the best texts read probatia, diminutive, little sheep.