is used (a) in the plural in the phrase "the first day of the week," Matthew 28:1; Mark 16:2,9; Luke 24:1; John 20:1,19; Acts 20:7; 1—Corinthians 16:2 . For this idiomatic use of the word see ONE , A, (5); (b) in the singular, Luke 18:12 , "twice in the week," lit., "twice of the sabbath," i.e., "twice in the days after the sabbath." See SABBATH.
With over 3,400 entries, this timeless classic is THE reference guide to New Testament Greek words for English readers. It explains the meaning of the original Greek with the added dimension of the context of the Greek word.Wikipedia
Read More