Sources

Aclyach                    1525                        Reid, Wigtownshire Charters, no. 235
Aclyach                    1525                        RMS 1513-1546, no. 322
Auchlyoch                1591                        RMS 1580-1593, no. 1957
Auchsleoch              1600                        Retours (Wigton) 20
Achleoch                 1625                        Retours (Wigton) 60
Auchleoch               1662                        Retours (Wigton) 139
Auchleoch               1684                        parish roll
Achleach                 1747-55                   Roy
Auchlaigh                1782                        Ainslie
Auchlaigh                1826                        Thomson
Auchleach               1849                        OS Six-inch 1^st Ed.
Auchleach               1901                        Bartholomew
Auchleach               2015                        OS 1:25 Explorer Map 309

“AUCHENLÈCK … Achadh na lèc [lack], field of the tombs (lit. flat stones).” Maxwell 1887: 58

“Auchleach … is Ach[adh]-leitheich, locative of ach-leitheach, ‘half-(in)field’, i.e., ‘(in)field on a hillside’.” MacQueen 202: 76

“Achleach-Achlich 1608 ; Achleich 1633 ; G. Ach-leitheich, locative of “ach-leitheach,” half-field, i.e. field on a hill side. A cold sunless place.” Watson 1904, 89

Additional Information

The local pronunciation has preserved the second element ‘leitheach’ as if Gaelic was still a community language in the area today.

There is also an Auchleach in the parish of Stoneykirk NX102470, in the Rhinns of Galloway.
Achleach                 1698        Retours (Wigton) 188