Exploring the Meaning of Trimenon in Greek

τρίμηνος means “three months” and appears in the description of Moses’ infancy in Hebrews 11:23. In that context it specifies the length of time his parents kept him hidden despite royal orders.

Root and Related Words

τρίμηνος is formed from τρεῖς (treis), “three” (Strong’s G5140), and μήν (mēn), “month” (Strong’s G3376). The resulting expression is a single word that combines a number with a calendar unit to express a fixed duration.

Occurrences

“By faith, Moses, when he was born, was hidden for three months by his parents, because they saw that he was a beautiful child, and they were not afraid of the king’s commandment.” (Hebrews 11:23)

Here τρίμηνος sets a definite, measured interval for the parents’ action: Moses “was hidden for three months.” The word functions as a time-marker that frames the entire scene—birth, concealment, and the pressure of “the king’s commandment”—within a bounded span. The author’s point is not simply that concealment happened, but that it continued steadily for a specified period while danger remained real. By attaching a concrete duration to the verb “was hidden,” the wording presents the parents’ protective response as sustained and deliberate rather than momentary.

The verse ties this time period closely to motive and courage. The concealment lasts “for three months” because “they saw that he was a beautiful child,” and because “they were not afraid.” The temporal phrase therefore sits between the child’s birth and the parents’ evaluation of him on the one hand, and their fearlessness before royal authority on the other. τρίμηνος helps the reader feel the passing of time under threat: it is long enough to imply repeated decisions to continue hiding him, yet short enough to keep the story moving forward with urgency. The measured duration supports the emphasis on faith by showing that the parents’ stance endured over a defined stretch of days and weeks.

Sense and Usage

In its sole New Testament occurrence, τρίμηνος expresses duration in ordinary calendar terms: a period of three months. Because it is built from “three” plus “month,” it naturally carries an arithmetical precision; the time is not vague (“for a while”) but counted. That precision is rhetorically useful in Hebrews 11:23, where faith is portrayed as concrete action in time. The reader is given a window of length that can be imagined and reckoned—a span that has beginnings and endings, routine days and continued risk.

The verse also shows how such a duration can function as a narrative boundary. “When he was born” introduces a starting point; “for three months” establishes how long the initial response lasted; the mention of “the king’s commandment” supplies the external pressure under which the period unfolds. τρίμηνος therefore contributes more than a statistic: it organizes the scene and gives the parents’ faith a temporal shape. The concealment is pictured as continuous across the interval rather than intermittent or symbolic, and the fixed length keeps the reader attentive to the reality that faith can persist under an ongoing command that would otherwise provoke fear.

Because τρίμηνος is a compact expression, it can bear the weight of both measurement and mood. Measured time often highlights strain: when a situation is dangerous, even a short season can feel extended. The verse places the three-month period alongside the parents’ refusal to be “afraid,” allowing the duration itself to underscore their steadiness. The phrase does not explain how they hid the child; it simply anchors the act of hiding to a specific length of time, leaving the reader with the sense of a sustained, quietly courageous interval.

Imagery

Within Hebrews 11:23, τρίμηνος evokes the image of a newborn’s earliest months passing in secrecy. The word’s concrete time-measure invites the reader to picture ordinary life—days accumulating into weeks—lived under the shadow of “the king’s commandment,” and yet marked by the parents’ unafraid resolve.

Sources: Lexical data from Strong’s Exhaustive Concordance and the Translators Brief Lexicon of Extended Strongs for Greek (STEPBible, CC BY). Occurrence data from the Translators Amalgamated Greek New Testament (STEPBible, CC BY). Scripture quotations from the World English Bible (public domain).