Timothy means honouring God, and he was raised to it — Paul reminds him of the unfeigned faith of his grandmother Lois and his mother Eunice, and that from a child he had known the holy scriptures. Paul took the young man as his own son in the faith and closest co-worker.
Timid by temperament, Timothy was told not to let anyone despise his youth but to be an example to the believers. The two letters Paul wrote him are a mentor's charge to a young pastor: keep the faith, guard the deposit, endure hardness.
Timothy is a warm, enduring classic — gentle, faithful, and shortened affectionately to Tim.
Tim, Timmy, Timoteo
Timothy in the Bible
When I call to remembrance the unfeigned faith that is in thee, which dwelt first in thy grandmother Lois, and thy mother Eunice; and I am persuaded that in thee also.