a. Sc. Obs. Also firstin. [Lengthened form of FIRST a., ultimately due to the analogy of EIGHTIN.] = FIRST a.

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1594.  The Battell of Balrinnes, in Scot. Poems 16th C., II. 351.

        The firstin man in counsall spak,
Good Errol it was he,
Who sayis, I will the vaneguard tack,
And leiding wpone me.
    Ibid., II. 353.
The firsten shot was to neir,
It lighted all to schort,
The nixtin shot thair foes hurt,
It lighted wounderous weill.

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