Survey of English Place-Names

Historical Forms

• Trostermod 1202 P

• Trostermouth 1376 Ipm

• Trostermothe 1540 MinAcct

• Trostormot 1256 Ass7d 1303 1333 Lowth

• Trostormod(e) 1275 Misc 1279 Ass5d 1383 Pedw79d

• Trosthormot 1278 Ass8

• Trostormoth 1279 ib

• Trostormouth 1385 Pat

• Strostermod 1276 Abbr

• Streftormote 1402 FA

• Thorstormod 1279 Ass6d

• Trostormond(e) 1295 CWxviii,137 1375,1401 Cl

• Trostorment 1333 Bart 1670 PR

• Trostormount 1583 FF

• Trosdormont 1724 PR

• Trostermound 1301 Kendi,138

• Trostermont 1578 ib

• Trestormot 1362 Fine

• Trestermot 1363 Ipm

• Trestormont 1711 PR

• Trestermount 1865 OS

• Trustormot 1459 Fine

• Trustramount 1694 PR

• Crostormount 1634,1675 NB 1777 M

• Crostor(e)ment 1676,1677 PR

• Crosdormant 1709,1734 PR

Etymology

Although there is some palæographic ambiguity between c and t in the court hand the first el. was undoubtedly originally Tros -, which Ekwall (ScandsCelts 43) derives from ON  tros 'rubbish, like leaves and twigs gathered up for fuel' (Cleasby-Vigf s.v.); this word is related to Swed dial. trås 'waste', OFris  tros 'tree-stump, scrap', OE  trūs 'brushwood' (cf. HellquistSvEO s.v. tross , Jóhannesson 489), and in the p.n. has some such meaning as 'place with undergrowth', possibly 'a place only partially cleared'; cf. also Trosby (NG vii, 68–9), where tros is also thought to have had some such meaning as 'waste or leavings from timber-felling or from the clearing of woodland'. The name is an early inversion and the second el. is the ON  pers.n. Þormóðr , as the earlier spellings show. The substitution of Cross - is analogical and that of -mont for -mōt is as in Eamont (i, 5, ii, 205 supra ).