Whilst not germane to English, some languages use different words, like pronouns, to differentiate the sexes. For example, in Thai the pronoun “I” as in I Go for a male speaker is “Pom” and for a female “Chan”.
We simply say such words are gender-specific.
1.1 Denoting a word or expression that refers to one gender only.
‘the use of gender-specific terms such as 'man' and 'brothers'’