Strong’s Concordance
Definition - to keep, to guard, to observe, to watch over
Word Origin - From a primary word (teros, meaning “a guard”)
Usage - The Greek verb “τηρέω” (téreó) primarily means to keep or guard something with care. It conveys the idea of watching over something attentively, maintaining it in its original state, or observing it with the intent to preserve. In the New Testament, it is often used in the context of keeping commandments, guarding the faith, or observing teachings
Helps Word-studies
5083 tēréō (from tēros, “a guard”) – properly, maintain (preserve); (figuratively) spiritually guard (watch), keep intact.