From BiblePortal Wikipedia

Vine's Expository Dictionary of NT Words [1]

1: Ἀνάγω (Strong'S #321 — Verb — anago — an-ag'-o )

"to bring up" (ana, "up," ago, "to lead"), is used in the Middle Voice as a nautical term signifying "to put to sea;" it is translated "launch forth" in  Luke 8:22; "set sail" in  Acts 13:13 , RV (AV, "loosed"); similarly in  Acts 16:11; in  Acts 18:21 , for AV, "sailed;" similarly in  Acts 20:3,13; in  Acts 21:1 , RV, "set sail," (AV, "launched"), and in  Acts 21:2 , for AV, "set forth;" in  Acts 27:2,4 the RV has the verb "to put to sea," for AV "to launch;" in   Acts 27:12 for AV, "depart;" in   Acts 27:21 , RV, "set sail" (AV, "loosed"); in  Acts 28:10,11 , "sailed" and "set sail" (AV, "departed"). See Bring , Depart , Lead , Loose , Offer , Put , Sail , Set.

2: Ἐπανάγω (Strong'S #1877 — Verb — epanago — ep-an-ag'-o )

"to lead up upon" (epi, "upon," and No. 1), is used as a nautical term with ploion, "a ship," understood, denoting "to put out to sea," translated in  Luke 5:3 , "put out," RV (AV, "thrust out"); in  Luke 5:4 , for AV, "launch." For the non-nautical significance "to return," see  Matthew 21:18 . See Put , Return , Thrust. In the Sept.,   Zechariah 4:12 , "that communicate with (the golden oil vessels)."

Webster's Dictionary [2]

(1): ( v. i.) To send out; to start (one) on a career; to set going; to give a start to (something); to put in operation; as, to launch a son in the world; to launch a business project or enterprise.

(2): ( n.) The boat of the largest size belonging to a ship of war; also, an open boat of any size driven by steam, naphtha, electricity, or the like.

(3): ( n.) The movement of a vessel from land into the water; especially, the sliding on ways from the stocks on which it is built.

(4): ( n.) The act of launching.

(5): ( v. i.) To move with force and swiftness like a sliding from the stocks into the water; to plunge; to make a beginning; as, to launch into the current of a stream; to launch into an argument or discussion; to launch into lavish expenditures; - often with out.

(6): ( v. i.) To cause to move or slide from the land into the water; to set afloat; as, to launch a ship.

(7): ( v. i.) To strike with, or as with, a lance; to pierce.

(8): ( v. i.) To throw, as a lance or dart; to hurl; to let fly.

King James Dictionary [3]

Launch See Lanch, the more correct orthography.