From Eurfa Saesneg, English-Welsh Eurfa/Freedict dictionary ver. 0.2.3: sum /sˈʌm/ <n> swm <n, s, m>
sum /sˈʌm/ <n> swm <n, s, m>
From Eurfa Saesneg, English-Welsh Eurfa/Freedict dictionary ver. 0.2.3: sum /sˈʌm/ <n> sym <n, s, f>
sum /sˈʌm/ <n> sym <n, s, f>