Sc. and north. Obs. Forms: 4 treist, traste, trayste, 4–5 traiste, trayst, trast; 5 treyst, 4–7 traist. [app. a. ON. treystr, pa. pple. of treysta (OTeut. *traustjan) to make firm or strong, used in the sense of ON. traustr firm, strong, safe, secure, sure, trusty.]
1. Firm, strong; secure, safe.
a. 1300. Cursor M., 9883. Þis castel … a-pon þe marche it standes traist, O fede ne dredes it na fraist.
2. Assured, sure, confident, full of trust.
c. 1300. Cursor M., 17219 (Gött.). Þu mai be ful traist to spede.
1375. Barbour, Bruce, IX. 381. Þarfor sekir and trast þai war.
c. 1375. Sc. Leg. Saints, xxxii. (Iustin), 482. Þe feynd þane Wend he traste wes of þe man.
c. 1475. Rauf Coilȝear, 549. ‘Be thow traist,’ said the Coilȝear, ‘man, as I am trew, I will not haist me ane fute faster on the way.’
3. Trusty, trustworthy; faithful, true.
c. 1330. R. Brunne, Chron. (1810), 175. Ȝour wille is euer so gode, & ȝour treuth so treist. Ibid. (c. 1330), Chron. Wace (Rolls) 8392. Lok þat ȝe be trewe & traist.
1412. in 15th Rep. Hist. MSS. Comm., App. VIII. 10. Oure traiste and wele belofit cosyng, Schir William of Douglas.
c. 1460. Towneley Myst. xxviii. 74. I saide if he nede be-stode to hym shuld none be trastir.
c. 1461. in Jarrow & Wearmouth (Surtees), 246. I beseke ȝowe send furth a trayst mane.
1501. Douglas, Pal. Hon., I. xlix. Constant Lucrece, and traist Penelope.
1535. Stewart, Chron. Scot. (Rolls), III. 166. Richt nobill men that war bayth traist & trew.
1620. Reg. Mag. Sig. Scot., 783/1. Our richt traist cowsing and counsellar Thomas Erle of Kellie.
B. adv. a. Firmly, securely. b. Confidently, assuredly.
c. 1470. Golagros & Gaw., 292. Trou ye full traist, My hecht sall haldin be for baill or for blis. Ibid., 415.
