Substancial

[N]o perſone, or perſones, occupiyng the ſeate of diẽg, ſhal die, or altre into colours, or cauſe to be died, or altred into colours, any wollen clothes, as broune blewes, pieukes, tawnies, or violettes, except the ſame wollẽ clothes be perfeictly boiled, greined or madered vpon the woade, & ſhot with good, and ſufficient corke, or orchal after a due, ſubſtancial, & ſufficient maner of workemanſhip, according to thauncient workmanſhip in time paſt vſed, vpõ peine for euery defalt to forfeite .xx. s̃.

Source: wiktionary

Moꝛeouer S. Paule wꝛiting after the ſupper was paſt, doth interpꝛete the verbe (is) as plainly, as can be deuiſed: to ſignifie a ſubſtancial, and not an accidentall being.

Source: wiktionary

Thus ſaith the Preacher, notably correcting the curioſity of men, in ſearching into the ſecrets of God, & this I haue thought good to touch here by the waie, though breefely, becauſe I wold not digreſſe to farr from my principal martter, referring the furder, and more ſubſtancial diſcourſe of this point, […]

Source: wiktionary