English Notes: 

(others of) her ilk [pron]
(others of) his ilk [pron]
(others of) their ilk [pron]
people of that ilk
to be of the same ilk [coll.]

English Description: 

Old English ilca "the same" (pron.), from Proto-Germanic *ij-lik (compare German eilen), in which the first element is from the PIE demonstrative particle *i- (see yon) and the second is that in Old English -lic "form" (see like (adj.)). Of similar formation are each, which and such, but this word disappeared except in Scottish and thus did not undergo the usual southern sound changes. ...

German Translation: