Tertius

Boyd’s Bible Dictionary:

(third). Paul’s scribe in writing his Epistle to the Romans (Rom. 16:22).

Concise Bible Dictionary:

The Christian who wrote the Epistle to the Romans at Paul’s dictation, and who sent his own salutation to the saints (Rom. 16:22).

Strong’s Dictionary of Greek Words:

Greek:
Τέρτιος
Transliteration:
Tertios
Phonic:
ter’-tee-os
Meaning:
of Latin origin; third; Tertius, a Christian
KJV Usage:
Tertius

Jackson’s Dictionary of Scripture Proper Names:

the third

Potts’ Bible Proper Names:

Third:―Paul’s scribe in writing his Epistle to the Romans, Rom. 16:22. {Tertius}