Tend
Middle English (in the sense ‘move or be inclined to move in a certain direction’): from Old French tendre ‘stretch, tend’, from Latin tendere .
wiktionary
From Middle English *tenden, from Old French tendre(“to stretch, stretch out, hold forth, offer, tender”), from Latin tendere(“to stretch, stretch out, extend, spread out”).
From Middle English tenden, by apheresis of attenden(“to attend”). More at attend.
From Middle English tenden, from Old English tendan(“to kindle, set on fire”) (usually in compounds ātendan, fortendan, ontendan), from Proto-Germanic *tandijaną(“to kindle”), of unknown origin. Cognate with Danish tænde(“to kindle”), Swedish tända(“to ignite”), Gothic 𐍄𐌰𐌽𐌳𐌾𐌰𐌽( tandjan, “to kindle”), Icelandic tendra(“to ignite”), German zünden(“to light, ignite, fire”). Related to tinder.
etymonline
tend (v.1)
"to incline, to move in a certain direction," early 14c., from Old French tendre "stretch out, hold forth, hand over, offer" (11c.), from Latin tendere "to stretch, extend, make tense; aim, direct; direct oneself, hold a course," from PIE root *ten- "to stretch."
tend (v.2)
"attend to," c. 1200, a shortening of Middle English atenden (see attend).
