Strong’s G5581: A compound adjective combining “pseudēs” (false) and “onoma” (name), meaning falsely named or misnamed. Used in early Christian contexts to describe false teachings masquerading as true knowledge, particularly relevant to early Gnostic heresies.

U- Unveiling the Word

Ψευδώνυμος represents a critical term in early Christian apologetics, specifically addressing the problem of false teaching claiming to be true knowledge. The compound construction emphasizes deliberate misrepresentation – something bearing a false or deceptive name. In 1 Timothy, Paul uses this term to warn against what would develop into Gnostic heresies. The word holds particular relevance today as it addresses the perpetual challenge of distinguishing authentic Christian teaching from attractive but misleading spiritual alternatives. Its usage reminds believers to exercise discernment when encountering claims of special spiritual knowledge.

N – Necessary Information

• Greek Word: ψευδώνυμος, pseudōnymos, /psyoo-DO-nee-mos/
• Detailed pronunciation: psyoo (as in pseudo) – DO (as in door) – nee (as in knee) – mos (as in moss)
• Part of Speech: Adjective

Etymology:

• ψευδής (pseudes) – prefix meaning “false” or “lying”
• ὄνυμα/ὄνομα (onoma) – root meaning “name”
• -ος (-os) – adjectival suffix

D – Defining Meanings

• Falsely named
• Bearing a false name
• Misnamed

For compound words:

• ψευδής (false) – indicates deception or falsehood
• ὄνυμα/ὄνομα (name) – identifies the object of deception
• -ος – makes it an adjective describing the nature of something

Translation Options:

• “falsely named” – emphasizes the deliberate misrepresentation
• “falsely called” – highlights the attribution aspect
• “misnamed” – suggests incorrect designation

E – Exploring Similar Words

• ψευδής (pseudes) /psyoo-DAYS/ – simply meaning “false” – See G5571
• ψεῦδος (pseudos) /PSYOO-dos/ – falsehood as a noun – See G5579
• ψευδομαρτυρέω (pseudomartureō) /psyoo-do-mar-too-REH-o/ – to bear false witness – See G5576

R – Reviewing the Word’s Morphology

Morphological Features (Adjective):

• Case: Can appear in all cases (Nominative, Genitive, Dative, Accusative)
• Number: Singular and Plural forms
• Gender: Masculine, Feminine, and Neuter forms
• Declension: 2nd-1st declension (three terminations)

Example morphological changes:

• Masculine: ψευδώνυμος
• Feminine: ψευδώνυμη
• Neuter: ψευδώνυμον
• Cross-reference: ψευδωνυμέω (verb form, though rare)

S – Studying Lexicon Insights

The term ψευδώνυμος appears prominently in early Christian writings addressing false teaching. BDAG emphasizes its technical usage in referring to teachings falsely claiming the status of knowledge. Thayer’s highlights its compound nature and its specific application to Gnostic claims. LSJ provides evidence of secular usage meaning “under a false name” or “pseudonymous.” Vine’s connects it to other compound words with ψευδ- prefix in the New Testament. Strong’s emphasizes the falsity aspect. Moulton and Milligan document its usage in papyri referring to misrepresented items or claims.

T – Tracing the Scriptures

First appearance:
1 Timothy 6:20 “O Timothy, guard what has been entrusted to you, avoiding worldly and empty chatter and the opposing arguments of what is falsely called [ψευδωνύμου] knowledge”

Additional References:
This is the only occurrence in the New Testament.

A – Analyzing Classical Usage

N – Noteworthy Summary

Ψευδώνυμος serves as a powerful reminder of the importance of discernment in Christian faith. Paul’s use of this term in 1 Timothy demonstrates his pastoral concern for protecting true doctrine from counterfeit knowledge. The word’s precise construction – combining false with name – points to the deliberate nature of such deception. This connects to the gospel message by emphasizing the importance of knowing and holding fast to genuine truth in Christ, rather than being led astray by impressive-sounding but empty philosophical claims.

D – Did You Know?

• The English word “pseudonym” derives directly from this Greek term
• It’s the only compound word with -ώνυμος in the New Testament
• The term became particularly important in early church debates against Gnosticism

Strong’s G5581: A compound adjective combining “pseudēs” (false) and “onoma” (name), meaning falsely named or misnamed. Used in early Christian contexts to describe false teachings masquerading as true knowledge, particularly relevant to early Gnostic heresies.

Part of speech: Adjective

Tags: false teaching, deception, Gnosticism, knowledge, truth, doctrine, heresy, Timothy, Paul, pastoral epistles​​​​​​​​​​​​​​​​