A grammatical term for words that express numbers, such as 一, 二, 三, or ひとつ, ふたつ.
Japanese numerals include Sino-Japanese ones like ichi, ni, san and native Japanese ones like hitotsu, futatsu.
In Japanese, you attach a counter word to a numeral to count things.
助数詞 are counter suffixes like 本 or 匹 attached to a number, while 数詞 are the number words themselves, such as 一 or ひとつ.
counter word; measure word
Compound of 数 (number) and 詞 (word, part of speech). A straightforward kanji term for 'numeral'.