What is the theoretical term for the voice-leading phenomenon whereby the note that a suspension is expected to resolve to appears in another voice on the same beat that the suspension begins? You can see a version of this in the final cadence of 'O nata lux' by Thomas Tallis, second to last bar, second to last beat; a suspended fourth in the top voice and the minor third of the chord in the tenor. Obviously, this is not a voice-leading error in this case and the suspension doesn't actually resolve on the minor third in the top voice. Regardless, I'm curious to know what this type of voice-leading is called as I can't find any information on it. Thanks in advance.
If you mean the setting of the word "corporis" in the last bar, that's an English cadence, and it was fairly common in English music of the 16th and 17th centuries - Wikipedia uses an example from another Tallis work. The distinguishing feature is that the raised and natural leading tones are used at the same time.