Quick Definition
σαββατισμός, οῦ, ὁ n.m. a Sabbath rest
Strong's Definition
from a derivative of 4521; a "sabbatism", i.e. (figuratively) the repose of Christianity (as a type of heaven)
KJV Usage: rest
UBS Dictionary of the Greek New Testament
UBS Dictionary of the Greek New Testament © United Bible Societies, licensed CC BY-SA 4.0.
Thayer's Greek Lexicon
σαββατισμός, -οῦ, ὁ, (σαββατίζω to keep the sabbath) ; 1. a keeping sabbath. 2. the blessed rest from toils and troubles looked for in the age to come by the true worshippers of God and true Christians [R. V. sabbath rest]: Heb. iv. 9. (Plut. de superstit. ce. 3; eccl. writ.) ὃ
Mounce Concise Greek Dictionary
σαββατισμός sabbatismos 1x
pr. a keeping of a sabbath; a state of rest, a sabbath-state, Heb. 4:9*
Abbott-Smith Greek Lexicon
*† σαββατισμός, -οῦ, ὁ
(< σαββατίζω, to keep the sabbath, Ex 16:30, al.),
a keeping sabbath, a sabbath rest: metaph., as in Mishna (Zorell, s.v.), He 4:9.†
Liddell-Scott-Jones — Greek-English Lexicon
σαββατισμός (sabbatismos) — Sabbath rest. Σαββᾰτ-ισμός, ὁ, a keeping of days of rest, Ep. Hebrew 4.9,[Refs 1st c.AD+]