From Wiktionary, the free dictionary
- beinah (less common spelling, but more common pronunciation)
From Middle High German bīnāhe, bīnāch. Analysable as bei (“by, near”) + nah (“near, close”). Compare Dutch bijna.
beinahe
- almost; nearly
- Synonyms: bald, fast, nahezu
- “beinahe” in Duden online
- “beinahe” in Digitales Wörterbuch der deutschen Sprache