SkED = An Etymological English Dictionary by W. W. Skeat, Oxford, 1910.
Sol = the poem Solomon and Saturn, in Gr (if in italics, the reference is sometimes to the prose version, ed. J. M. Kemble).
Soul = the poem of the Soul, in Gr.
SPs = Psalterium Davidis Latino-Saxonicum, ed. J. Spelman, London, 1640. (Stowe MS, but includes marginal readings from APs, CPs and EPs.)
Swt. = The Student’s Dictionary of Anglo-Saxon by H. Sweet, Oxford, 1897.
TC = Diplomatarium Ævi Saxonici, ed. B. Thorpe, London, 1865 (3).
tr. = transitive.
usu. = usual, usually.
v.l. = varia lectio.