What does saumu mean?
It actually means fasting, as in "willing abstinence or reduction from some or all food, drink, or both".
I don't know why garlic takes it's name from fasting, but maybe someone else does!
Well, have you ever seen garlic eat?? :-P
maybe it helps with fasting? (Can't say I've tried, but can imagine it to be possible)
Singular for garlic: kitunguu saumu. Either way, garlicS is not an acceptable English answer because that English word is noncount, so one does not add a plural marker to the end.