- Meaning & Use with quotes dating back to OE by Oxford English Dictionary: that_conj?tab=meaning_and_use&show-all-quotations=true#18771044
- examples of secondary write-out
- Early Scots: The Bruce
- OE: De Duodecim Abusivis
- OE: Homily (Hatton MS. 114) in A. S. Napier, Wulfstan (1883) 283
- “Gyf þæt þonne hwylc man seo, þæt him þæt on his mode to uneþelic þince, tylige he þonne [etc.].”
- Middle English Dictionary: MED45063
- examples of secondary write-out