> On the other other hand English does weird stuff with thousands - saying 2300 as 23 hundred.

Czech often does the same thing though, both when counting and naming years - "devatenáct set osmdesát čtyři" is literally "nineteen hundred eighty four"

There's "půldruha" and "poldruha" in Czech and Slovak too, but I feel like it loses competition to "jeden a půl/pol" in terms of usage.