Feb 3, 2021 · Hectare is from the Greek hect, the multiplier, and are, the primary unit of land measurement and the base unit. It means 100 ares, so it makes sense to abbreviate to the initials of the multiplier and base. We do the same thing with kilogram ("kg"; not "ki"), millimetre ("mm"; not "mi"), nanosecond ("ns"; not "na"), and so on.

May 30, 2017 · Thus, in contrast to the SI system used by scientists internationally in which only base units separated by three powers of ten are employed (microlitre — millilitre — litre), one finds cl used for volume (75 cl on bottles of wine, rather than 750 ml), hectares (100 ares — 10,000 square metres) for large areas, and hectograms (etti in ...

Jun 12, 2018 · @Ares: The phrase "universally universal" would be two words. If a two-word phrase is acceptable, the phrase "universally applicable" better describes what particular quality of the thing is universal. If a two-word phrase isn't acceptable, the phrase "universally universal" would be unacceptable for that reason alone. –