A Dictionary of the Older Scottish Tongue (up to 1700)
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About this entry:
First published 2001 (DOST Vol. X).
This entry has not been updated since then but may contain minor corrections and revisions.
-sum, suffix. See Auchtsum n., Foursum n., Sevin sum n., Sex sum n., Thresum n., twasum Twa num. A 3 and Sum(e pron. 10.
