tranquille
From LSJ
ἑτέρως ἠδύνατο βέλτιον ἢ ὡς νῦν ἔχει κατεσκευάσθαι → otherwise they could have been constructed better than they are now (Galen, On the use of parts of the body 4.143.1 Kühn)
Latin > English (Lewis & Short)
tranquillē: adv., v. tranquillus.
Latin > French (Gaffiot 2016)
tranquillē¹⁴ (tranquillus), tranquillement, paisiblement : Cic. Tusc. 3, 25, etc. || tranquillius Sen. Ep. 71, 15 ; -issime Suet. Aug. 2.
Latin > German (Georges)
trānquillē, Adv. m. Compar. u. Superl. (tranquillus), ruhig, Plaut., Cic. u.a.: lucidius tranquilliusque inter divina mansurus (animus), Sen. ep. 71, 16: tranquillissime senuit, Suet. Aug. 2, 2.