Noah Webster's Dictionary 1. (p. pr. & vb. n.) of Lag. 2. (n.) The clothing (esp., an outer, wooden covering), as of a steam cylinder, applied to prevent the radiation of heat; a covering of lags; -- called also deading and cleading. 3. (n.) Lags, collectively; narrow planks extending from one rib to another in the centering of arches.

Multi-Version Concordance Lagging (2 Occurrences) Romans 12:11 not lagging in diligence; fervent in spirit; serving the Lord; (WEB NAS) Deuteronomy 25:18 how he met you by the way, and struck the hindmost of you, all who were feeble behind you, when you were faint and weary; and he didn't fear God. (See NIV)