Meaning

adverb with a forward motion

adverb in accompaniment or as a companion

adverb to a more advanced state

originEtymology tree Proto-Indo-European *h₂ent- Proto-Indo-European *-s Proto-Indo-European *h₂éntsder. Proto-Germanic *anda- Proto-West Germanic *anda- Old English and- Proto-Indo-European *dlongʰos Proto-Germanic *langaz Proto-West Germanic *lang Old English lang Old English andlang Middle English English along From Middle English, from Old English andlang, from prefix and- + lang (“long”). Doublet…

Etymology from Wiktionary, CC BY-SA 3.0