10 letters · 19 points in Scrabble
noun communicating at a distance by electric transmission over wire
noun apparatus used to communicate at a distance over a wire (usually in Morse code)
originFrom telegraph + -y (suffix forming abstract nouns), q.v., equivalent to tele- (“far, distant, telegraph”) + -graphy (“writings on a subject, area of study, etc.”).
Etymology from Wiktionary, CC BY-SA 3.0