ὀνομάζω

Mark 3:14 ὠνόμασεν He called [them]

He appointed twelve of them, whom He designated as apostles, to accompany Him, to be sent out to preach,

Luke 6:13 ὠνόμασεν· He named:

When daylight came, He called His disciples to Him and chose twelve of them, whom He also designated as apostles:

Here: He gave them the name. Naming someone was an act of authority that set their role. The same verb comes next in verse 14: "Simon, whom he named Peter."

Luke 6:14 ὠνόμασεν He named

Simon, whom He named Peter, and his brother Andrew; James and John; Philip and Bartholomew;

Here: 'He named.' The tense presents the naming as a single event and does not say when it happened. It repeats the verb just used for naming the Twelve 'apostles' (6:13).

Acts 19:13 ὀνομάζειν to invoke

Now there were some itinerant Jewish exorcists who tried to invoke the name of the Lord Jesus over those with evil spirits. They would say, “I command you by Jesus, whom Paul proclaims.”

Here: "To name": to say a name out loud as the working part of the act. In their hands, saying the name is meant to do the job.

Romans 15:20 ὠνομάσθη was named

In this way I have aspired to preach the gospel where Christ was not known, so that I would not be building on someone else’s foundation.

Here: 'Was named': where Christ had already been spoken of and called on by name, meaning where a group already confessed and worshiped him. The aorist passive looks at it as something that had already happened in that place.

1 Corinthians 5:11 ὀνομαζόμενος being designated

But now I am writing you not to associate with anyone who claims to be a brother but is sexually immoral or greedy, an idolater or a verbal abuser, a drunkard or a swindler. With such a man do not even eat.

Here: 'Who is named/called a brother.' The person is recognised as a member and carries the family name. The word does not in itself say the claim is fake.

Ephesians 1:21 ὀνομαζομένου being named

far above all rule and authority, power and dominion, and every name that is named, not only in the present age but also in the one to come.

Here: 'Being named': any name that is spoken, given as a title, or called on. In Ephesus the word could suggest names invoked in prayers, oaths and spells (compare Acts 19:13). The present tense means any name in use at all.

Ephesians 3:15 ὀνομάζεται, is named,

from whom every family in heaven and on earth derives its name.

Here: Present tense, passive voice: "is named," with God implied as the source. In the biblical world, naming something meant giving it its identity and showing authority over it, so this says more than that a label is attached.

Ephesians 5:3 ὀνομαζέσθω should be named

But among you, as is proper among the saints, there must not be even a hint of sexual immorality, or of any kind of impurity, or of greed.

Here: 'Let it be named', a present-tense command meaning 'never let it be named'. These things should be so foreign to the community that they are not even spoken of, or said to exist, among them.

2 Timothy 2:19 ὀνομάζων is naming

Nevertheless, God’s firm foundation stands, bearing this seal: “The Lord knows those who are His,” and, “Everyone who calls on the name of the Lord must turn away from iniquity.”

Here: 'Naming' the Lord means speaking his name in worship, oath or confession, and so publicly claiming him as your Lord. The present tense describes a habit: those who keep doing this.